diff --git a/benchmarks/Cargo.toml b/benchmarks/Cargo.toml
index ba221ccac..ecb52e96d 100644
--- a/benchmarks/Cargo.toml
+++ b/benchmarks/Cargo.toml
@@ -2,7 +2,7 @@
 name = "wasm-bindgen-benchmark"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 wasm-bindgen = "0.2.43"
diff --git a/crates/backend/Cargo.toml b/crates/backend/Cargo.toml
index b43eabba1..1444516e8 100644
--- a/crates/backend/Cargo.toml
+++ b/crates/backend/Cargo.toml
@@ -10,7 +10,7 @@ description = """
 Backend code generation of the wasm-bindgen tool
 """
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [features]
 spans = []
diff --git a/crates/cli-support/Cargo.toml b/crates/cli-support/Cargo.toml
index bf43dee24..9163b0d5c 100644
--- a/crates/cli-support/Cargo.toml
+++ b/crates/cli-support/Cargo.toml
@@ -10,7 +10,7 @@ description = """
 Shared support for the wasm-bindgen-cli package, an internal dependency
 """
 edition = '2018'
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 anyhow = "1.0"
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index e010e1d9c..47913e590 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -13,7 +13,7 @@ information see https://github.com/rustwasm/wasm-bindgen.
 """
 edition = '2018'
 default-run = 'wasm-bindgen'
-rust-version = "1.56"
+rust-version = "1.57"
 
 [package.metadata.binstall]
 pkg-url = "https://github.com/rustwasm/wasm-bindgen/releases/download/{ version }/wasm-bindgen-{ version }-{ target }{ archive-suffix }"
diff --git a/crates/example-tests/Cargo.toml b/crates/example-tests/Cargo.toml
index ff75a3b65..ac21c4216 100644
--- a/crates/example-tests/Cargo.toml
+++ b/crates/example-tests/Cargo.toml
@@ -3,7 +3,7 @@ name = "example-tests"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 anyhow = "1.0.75"
diff --git a/crates/externref-xform/Cargo.toml b/crates/externref-xform/Cargo.toml
index 329ac077b..a85ee4764 100644
--- a/crates/externref-xform/Cargo.toml
+++ b/crates/externref-xform/Cargo.toml
@@ -10,7 +10,7 @@ description = """
 Internal externref transformations for wasm-bindgen
 """
 edition = '2018'
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 anyhow = "1.0"
diff --git a/crates/futures/Cargo.toml b/crates/futures/Cargo.toml
index 639959a57..d3f4d1c70 100644
--- a/crates/futures/Cargo.toml
+++ b/crates/futures/Cargo.toml
@@ -9,7 +9,7 @@ repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/future
 readme = "./README.md"
 version = "0.4.37"
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 cfg-if = "1.0.0"
diff --git a/crates/js-sys/Cargo.toml b/crates/js-sys/Cargo.toml
index 69b20fa9c..f19202e65 100644
--- a/crates/js-sys/Cargo.toml
+++ b/crates/js-sys/Cargo.toml
@@ -13,7 +13,7 @@ Node.js and browsers, built on `#[wasm_bindgen]` using the `wasm-bindgen` crate.
 """
 license = "MIT OR Apache-2.0"
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 test = false
diff --git a/crates/macro-support/Cargo.toml b/crates/macro-support/Cargo.toml
index 5faed0326..d4b644834 100644
--- a/crates/macro-support/Cargo.toml
+++ b/crates/macro-support/Cargo.toml
@@ -10,7 +10,7 @@ description = """
 The part of the implementation of the `#[wasm_bindgen]` attribute that is not in the shared backend crate
 """
 edition = '2018'
-rust-version = "1.56"
+rust-version = "1.57"
 
 [features]
 spans = ["wasm-bindgen-backend/spans"]
diff --git a/crates/macro/Cargo.toml b/crates/macro/Cargo.toml
index c7b8fa747..748bdba65 100644
--- a/crates/macro/Cargo.toml
+++ b/crates/macro/Cargo.toml
@@ -10,7 +10,7 @@ description = """
 Definition of the `#[wasm_bindgen]` attribute, an internal dependency
 """
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 proc-macro = true
diff --git a/crates/multi-value-xform/Cargo.toml b/crates/multi-value-xform/Cargo.toml
index afb463db8..4f9291579 100644
--- a/crates/multi-value-xform/Cargo.toml
+++ b/crates/multi-value-xform/Cargo.toml
@@ -10,7 +10,7 @@ description = """
 Internal multi-value transformations for wasm-bindgen
 """
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 anyhow = "1.0"
diff --git a/crates/shared/Cargo.toml b/crates/shared/Cargo.toml
index 4fa77b619..1384dcbe8 100644
--- a/crates/shared/Cargo.toml
+++ b/crates/shared/Cargo.toml
@@ -11,7 +11,7 @@ Shared support between wasm-bindgen and wasm-bindgen cli, an internal
 dependency.
 """
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 # Because only a single `wasm_bindgen` version can be used in a dependency
 # graph, pretend we link a native library so that `cargo` will provide better
diff --git a/crates/test-macro/Cargo.toml b/crates/test-macro/Cargo.toml
index 540fd7f0a..242d93ce8 100644
--- a/crates/test-macro/Cargo.toml
+++ b/crates/test-macro/Cargo.toml
@@ -6,7 +6,7 @@ description = "Internal testing macro for wasm-bindgen"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen"
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 proc-macro = true
diff --git a/crates/test/Cargo.toml b/crates/test/Cargo.toml
index 768933597..c65d4ae57 100644
--- a/crates/test/Cargo.toml
+++ b/crates/test/Cargo.toml
@@ -6,7 +6,7 @@ description = "Internal testing crate for wasm-bindgen"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen"
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 console_error_panic_hook = '0.1'
diff --git a/crates/threads-xform/Cargo.toml b/crates/threads-xform/Cargo.toml
index 0a608fd2f..dcac4e4f8 100644
--- a/crates/threads-xform/Cargo.toml
+++ b/crates/threads-xform/Cargo.toml
@@ -10,7 +10,7 @@ description = """
 Support for threading-related transformations in wasm-bindgen
 """
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 anyhow = "1.0"
diff --git a/crates/typescript-tests/Cargo.toml b/crates/typescript-tests/Cargo.toml
index 5b61464cb..96030d8e2 100644
--- a/crates/typescript-tests/Cargo.toml
+++ b/crates/typescript-tests/Cargo.toml
@@ -3,7 +3,7 @@ name = "typescript-tests"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 wasm-bindgen = { path = '../..' }
diff --git a/crates/wasm-conventions/Cargo.toml b/crates/wasm-conventions/Cargo.toml
index 0d5104868..2819567f5 100644
--- a/crates/wasm-conventions/Cargo.toml
+++ b/crates/wasm-conventions/Cargo.toml
@@ -8,7 +8,7 @@ homepage = "https://rustwasm.github.io/wasm-bindgen/"
 documentation = "https://docs.rs/wasm-bindgen-wasm-conventions"
 description = "Utilities for working with Wasm codegen conventions (usually established by LLVM/lld)"
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 walrus = "0.19.0"
diff --git a/crates/wasm-interpreter/Cargo.toml b/crates/wasm-interpreter/Cargo.toml
index bdbdc70dd..b5c4adc5c 100644
--- a/crates/wasm-interpreter/Cargo.toml
+++ b/crates/wasm-interpreter/Cargo.toml
@@ -10,7 +10,7 @@ description = """
 Micro-interpreter optimized for wasm-bindgen's use case
 """
 edition = '2018'
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 anyhow = "1.0"
diff --git a/crates/web-sys/Cargo.toml b/crates/web-sys/Cargo.toml
index 6b319f5e4..2163a277c 100644
--- a/crates/web-sys/Cargo.toml
+++ b/crates/web-sys/Cargo.toml
@@ -11,7 +11,7 @@ Bindings for all Web APIs, a procedurally generated crate from WebIDL
 """
 license = "MIT OR Apache-2.0"
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/webidl-tests/Cargo.toml b/crates/webidl-tests/Cargo.toml
index e9acb0ca4..5f3333d5d 100644
--- a/crates/webidl-tests/Cargo.toml
+++ b/crates/webidl-tests/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
 publish = false
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 test = false
diff --git a/crates/webidl/Cargo.toml b/crates/webidl/Cargo.toml
index 158511d5e..3b1205f8b 100644
--- a/crates/webidl/Cargo.toml
+++ b/crates/webidl/Cargo.toml
@@ -11,7 +11,7 @@ description = """
 Support for parsing WebIDL specific to wasm-bindgen
 """
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 env_logger = "0.8.1"
diff --git a/examples/add/Cargo.toml b/examples/add/Cargo.toml
index b9fdb5318..858d8e5f3 100644
--- a/examples/add/Cargo.toml
+++ b/examples/add/Cargo.toml
@@ -3,7 +3,7 @@ name = "add"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/canvas/Cargo.toml b/examples/canvas/Cargo.toml
index 1821c64b1..fff19e6cb 100644
--- a/examples/canvas/Cargo.toml
+++ b/examples/canvas/Cargo.toml
@@ -3,7 +3,7 @@ name = "canvas"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/char/Cargo.toml b/examples/char/Cargo.toml
index c357e6bce..05df0750a 100644
--- a/examples/char/Cargo.toml
+++ b/examples/char/Cargo.toml
@@ -3,7 +3,7 @@ name = "char"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/closures/Cargo.toml b/examples/closures/Cargo.toml
index 6de26b5ac..4eb8e13b4 100644
--- a/examples/closures/Cargo.toml
+++ b/examples/closures/Cargo.toml
@@ -3,7 +3,7 @@ name = "closures"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/console_log/Cargo.toml b/examples/console_log/Cargo.toml
index aa3dacdb7..39aeaa9b7 100644
--- a/examples/console_log/Cargo.toml
+++ b/examples/console_log/Cargo.toml
@@ -3,7 +3,7 @@ name = "console_log"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/deno/Cargo.toml b/examples/deno/Cargo.toml
index b9ed7c9e5..fbc81683f 100644
--- a/examples/deno/Cargo.toml
+++ b/examples/deno/Cargo.toml
@@ -3,7 +3,7 @@ name = "deno"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/dom/Cargo.toml b/examples/dom/Cargo.toml
index fb9b29ebc..f6210e66b 100644
--- a/examples/dom/Cargo.toml
+++ b/examples/dom/Cargo.toml
@@ -3,7 +3,7 @@ name = "dom"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/duck-typed-interfaces/Cargo.toml b/examples/duck-typed-interfaces/Cargo.toml
index 88749b180..40cc8368b 100644
--- a/examples/duck-typed-interfaces/Cargo.toml
+++ b/examples/duck-typed-interfaces/Cargo.toml
@@ -3,7 +3,7 @@ name = "rust-duck-typed-interfaces"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/fetch/Cargo.toml b/examples/fetch/Cargo.toml
index 7f8d73058..cebc0df03 100644
--- a/examples/fetch/Cargo.toml
+++ b/examples/fetch/Cargo.toml
@@ -3,7 +3,7 @@ name = "fetch"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/guide-supported-types-examples/Cargo.toml b/examples/guide-supported-types-examples/Cargo.toml
index 9f24565e1..95ed4bd1f 100644
--- a/examples/guide-supported-types-examples/Cargo.toml
+++ b/examples/guide-supported-types-examples/Cargo.toml
@@ -3,7 +3,7 @@ name = "guide-supported-types-examples"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/hello_world/Cargo.toml b/examples/hello_world/Cargo.toml
index 10fdf816c..86c41ac34 100644
--- a/examples/hello_world/Cargo.toml
+++ b/examples/hello_world/Cargo.toml
@@ -3,7 +3,7 @@ name = "hello_world"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/julia_set/Cargo.toml b/examples/julia_set/Cargo.toml
index 448c8274d..2b9f47e0b 100644
--- a/examples/julia_set/Cargo.toml
+++ b/examples/julia_set/Cargo.toml
@@ -3,7 +3,7 @@ name = "julia_set"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/paint/Cargo.toml b/examples/paint/Cargo.toml
index aa4346481..4b820de87 100644
--- a/examples/paint/Cargo.toml
+++ b/examples/paint/Cargo.toml
@@ -3,7 +3,7 @@ name = "wasm-bindgen-paint"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/performance/Cargo.toml b/examples/performance/Cargo.toml
index 6dee2235c..711a0a0d0 100644
--- a/examples/performance/Cargo.toml
+++ b/examples/performance/Cargo.toml
@@ -3,7 +3,7 @@ name = "performance"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/raytrace-parallel/Cargo.toml b/examples/raytrace-parallel/Cargo.toml
index ae9fb9659..0d4cbd363 100644
--- a/examples/raytrace-parallel/Cargo.toml
+++ b/examples/raytrace-parallel/Cargo.toml
@@ -3,7 +3,7 @@ name = "raytrace-parallel"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/request-animation-frame/Cargo.toml b/examples/request-animation-frame/Cargo.toml
index 357917ea4..8e1167a5d 100644
--- a/examples/request-animation-frame/Cargo.toml
+++ b/examples/request-animation-frame/Cargo.toml
@@ -3,7 +3,7 @@ name = "request-animation-frame"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/synchronous-instantiation/Cargo.toml b/examples/synchronous-instantiation/Cargo.toml
index 8a1bb3c01..09e311a87 100644
--- a/examples/synchronous-instantiation/Cargo.toml
+++ b/examples/synchronous-instantiation/Cargo.toml
@@ -3,7 +3,7 @@ name = "synchronous-instantiation"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/todomvc/Cargo.toml b/examples/todomvc/Cargo.toml
index 3c4f0ec6c..7ec028108 100644
--- a/examples/todomvc/Cargo.toml
+++ b/examples/todomvc/Cargo.toml
@@ -3,7 +3,7 @@ name = "todomvc"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/wasm-audio-worklet/Cargo.toml b/examples/wasm-audio-worklet/Cargo.toml
index da6d35535..526ae16bd 100644
--- a/examples/wasm-audio-worklet/Cargo.toml
+++ b/examples/wasm-audio-worklet/Cargo.toml
@@ -2,7 +2,7 @@
 name = "wasm-audio-worklet"
 version = "0.1.0"
 edition = "2021"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/wasm-in-wasm-imports/Cargo.toml b/examples/wasm-in-wasm-imports/Cargo.toml
index 4a92fff4d..490ae552d 100644
--- a/examples/wasm-in-wasm-imports/Cargo.toml
+++ b/examples/wasm-in-wasm-imports/Cargo.toml
@@ -3,7 +3,7 @@ name = "wasm-in-wasm-imports"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/wasm-in-wasm/Cargo.toml b/examples/wasm-in-wasm/Cargo.toml
index fb9933031..72013a982 100644
--- a/examples/wasm-in-wasm/Cargo.toml
+++ b/examples/wasm-in-wasm/Cargo.toml
@@ -3,7 +3,7 @@ name = "wasm-in-wasm"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/wasm-in-web-worker/Cargo.toml b/examples/wasm-in-web-worker/Cargo.toml
index 9355ada52..59ecba60f 100644
--- a/examples/wasm-in-web-worker/Cargo.toml
+++ b/examples/wasm-in-web-worker/Cargo.toml
@@ -3,7 +3,7 @@ name = "wasm-in-web-worker"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/wasm2js/Cargo.toml b/examples/wasm2js/Cargo.toml
index 9e325a646..faf48666a 100644
--- a/examples/wasm2js/Cargo.toml
+++ b/examples/wasm2js/Cargo.toml
@@ -3,7 +3,7 @@ name = "wasm2js"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/weather_report/Cargo.toml b/examples/weather_report/Cargo.toml
index 7d0355cf7..dd6f0ef8f 100644
--- a/examples/weather_report/Cargo.toml
+++ b/examples/weather_report/Cargo.toml
@@ -6,7 +6,7 @@ authors = ["Ayush <ayushmishra2005@gmail.com>"]
 categories = ["wasm"]
 readme = "README.md"
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/webaudio/Cargo.toml b/examples/webaudio/Cargo.toml
index c2dc8ecce..5246e1d91 100644
--- a/examples/webaudio/Cargo.toml
+++ b/examples/webaudio/Cargo.toml
@@ -3,7 +3,7 @@ name = "webaudio"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/webgl/Cargo.toml b/examples/webgl/Cargo.toml
index 932da2ef7..c7d3af912 100644
--- a/examples/webgl/Cargo.toml
+++ b/examples/webgl/Cargo.toml
@@ -3,7 +3,7 @@ name = "webgl"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/webrtc_datachannel/Cargo.toml b/examples/webrtc_datachannel/Cargo.toml
index c27292c26..850cd8d0f 100644
--- a/examples/webrtc_datachannel/Cargo.toml
+++ b/examples/webrtc_datachannel/Cargo.toml
@@ -3,7 +3,7 @@ name = "webrtc_datachannel"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/websockets/Cargo.toml b/examples/websockets/Cargo.toml
index 78e6ef3e7..2ab90d3ae 100644
--- a/examples/websockets/Cargo.toml
+++ b/examples/websockets/Cargo.toml
@@ -3,7 +3,7 @@ name = "websockets"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/webxr/Cargo.toml b/examples/webxr/Cargo.toml
index 47d490c3c..0fb68d475 100644
--- a/examples/webxr/Cargo.toml
+++ b/examples/webxr/Cargo.toml
@@ -3,7 +3,7 @@ name = "webxr"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/without-a-bundler-no-modules/Cargo.toml b/examples/without-a-bundler-no-modules/Cargo.toml
index 003c20ca1..a112b33d6 100644
--- a/examples/without-a-bundler-no-modules/Cargo.toml
+++ b/examples/without-a-bundler-no-modules/Cargo.toml
@@ -3,7 +3,7 @@ name = "without-a-bundler-no-modules"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/without-a-bundler/Cargo.toml b/examples/without-a-bundler/Cargo.toml
index e3c1c5bc3..8d2034851 100644
--- a/examples/without-a-bundler/Cargo.toml
+++ b/examples/without-a-bundler/Cargo.toml
@@ -3,7 +3,7 @@ name = "without-a-bundler"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
 edition = "2018"
-rust-version = "1.56"
+rust-version = "1.57"
 
 [lib]
 crate-type = ["cdylib"]