diff --git a/Cargo.lock b/Cargo.lock
index 1d832e599a..276f8086c1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2490,18 +2490,16 @@ dependencies = [
 
 [[package]]
 name = "cranelift-bforest"
-version = "0.105.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29a6391a9172a93f413370fa561c6bca786e06c89cf85f23f02f6345b1c8ee34"
+version = "0.103.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "cranelift-entity",
 ]
 
 [[package]]
 name = "cranelift-codegen"
-version = "0.105.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "409c6cbb326604a53ec47eb6341fc85128f24c81012a014b4c728ed24f6e9350"
+version = "0.103.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "bumpalo",
  "cranelift-bforest",
@@ -2520,33 +2518,29 @@ dependencies = [
 
 [[package]]
 name = "cranelift-codegen-meta"
-version = "0.105.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fff55e100130995b9ad9ac6b03a24ed5da3c1a1261dcdeb8a7a0292656994fb3"
+version = "0.103.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "cranelift-codegen-shared",
 ]
 
 [[package]]
 name = "cranelift-codegen-shared"
-version = "0.105.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1446e2eb395fc7b3019a36dccb7eccea923f6caf581b903c8e7e751b6d214a7"
+version = "0.103.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 
 [[package]]
 name = "cranelift-control"
-version = "0.105.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24076ecf69cbf8b9e1e532ae8e7ac01d850a1c2e127058a26eb3245f9d5b89d1"
+version = "0.103.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "arbitrary",
 ]
 
 [[package]]
 name = "cranelift-entity"
-version = "0.105.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f40df95180ad317c60459bb90dd87803d35e538f4c54376d8b26c851f6f0a1b"
+version = "0.103.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "serde",
  "serde_derive",
@@ -2554,9 +2548,8 @@ dependencies = [
 
 [[package]]
 name = "cranelift-frontend"
-version = "0.105.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c3974cc665b699b626742775dae1c1cdea5170f5028ab1f3eb61a7a9a6e2979"
+version = "0.103.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "cranelift-codegen",
  "log",
@@ -2566,15 +2559,13 @@ dependencies = [
 
 [[package]]
 name = "cranelift-isle"
-version = "0.105.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99543f92b9c361f3c54a29e945adb5b9ef1318feaa5944453cabbfcb3c495919"
+version = "0.103.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 
 [[package]]
 name = "cranelift-native"
-version = "0.105.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c0d84dc7d9b3f73ad565eacc4ab36525c407ef5150893b4b94d5f5f904eb48a"
+version = "0.103.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "cranelift-codegen",
  "libc",
@@ -2583,9 +2574,8 @@ dependencies = [
 
 [[package]]
 name = "cranelift-wasm"
-version = "0.105.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53781039219944d59c6d3ec57e6cae31a1a33db71573a945d84ba6d875d0a743"
+version = "0.103.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "cranelift-codegen",
  "cranelift-entity",
@@ -4979,7 +4969,7 @@ dependencies = [
  "tree-sitter-embedded-template",
  "tree-sitter-heex",
  "tree-sitter-html",
- "tree-sitter-json 0.20.2",
+ "tree-sitter-json 0.20.0",
  "tree-sitter-markdown",
  "tree-sitter-python",
  "tree-sitter-ruby",
@@ -5089,7 +5079,7 @@ dependencies = [
  "tree-sitter-hcl",
  "tree-sitter-heex",
  "tree-sitter-html",
- "tree-sitter-json 0.20.2",
+ "tree-sitter-json 0.20.0",
  "tree-sitter-lua",
  "tree-sitter-markdown",
  "tree-sitter-nix",
@@ -7500,14 +7490,14 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.10.3"
+version = "1.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b62dbe01f0b06f9d8dc7d49e05a0785f153b00b2c227856282f671e0318c9b15"
+checksum = "697061221ea1b4a94a624f67d0ae2bfe4e22b8a17b6a192afb11046542cc8c47"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-automata 0.4.5",
- "regex-syntax 0.8.2",
+ "regex-automata 0.3.8",
+ "regex-syntax 0.7.5",
 ]
 
 [[package]]
@@ -7524,6 +7514,11 @@ name = "regex-automata"
 version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2f401f4955220693b56f8ec66ee9c78abffd8d1c4f23dc41a23839eb88f0795"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax 0.7.5",
+]
 
 [[package]]
 name = "regex-automata"
@@ -7548,6 +7543,12 @@ version = "0.6.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
 
+[[package]]
+name = "regex-syntax"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbb5fb1acd8a1a18b3dd5be62d25485eb770e05afb408a9627d14d451bae12da"
+
 [[package]]
 name = "regex-syntax"
 version = "0.8.2"
@@ -8390,7 +8391,7 @@ dependencies = [
  "tree-sitter",
  "tree-sitter-cpp",
  "tree-sitter-elixir",
- "tree-sitter-json 0.20.2",
+ "tree-sitter-json 0.20.0",
  "tree-sitter-lua",
  "tree-sitter-php",
  "tree-sitter-ruby",
@@ -10189,8 +10190,8 @@ dependencies = [
 
 [[package]]
 name = "tree-sitter"
-version = "0.20.100"
-source = "git+https://github.com/tree-sitter/tree-sitter?rev=da7063ba18381fd7dd3c7fc8e1bc43b129818569#da7063ba18381fd7dd3c7fc8e1bc43b129818569"
+version = "0.20.10"
+source = "git+https://github.com/tree-sitter/tree-sitter?rev=1d8975319c2d5de1bf710e7e21db25b0eee4bc66#1d8975319c2d5de1bf710e7e21db25b0eee4bc66"
 dependencies = [
  "cc",
  "regex",
@@ -10421,8 +10422,8 @@ dependencies = [
 
 [[package]]
 name = "tree-sitter-json"
-version = "0.20.2"
-source = "git+https://github.com/tree-sitter/tree-sitter-json?rev=3b129203f4b72d532f58e72c5310c0a7db3b8e6d#3b129203f4b72d532f58e72c5310c0a7db3b8e6d"
+version = "0.20.0"
+source = "git+https://github.com/tree-sitter/tree-sitter-json?rev=40a81c01a40ac48744e0c8ccabbaba1920441199#40a81c01a40ac48744e0c8ccabbaba1920441199"
 dependencies = [
  "cc",
  "tree-sitter",
@@ -11180,42 +11181,38 @@ checksum = "ca6ad05a4870b2bf5fe995117d3728437bd27d7cd5f06f13c17443ef369775a1"
 
 [[package]]
 name = "wasm-encoder"
-version = "0.41.2"
+version = "0.38.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "972f97a5d8318f908dded23594188a90bcd09365986b1163e66d70170e5287ae"
+checksum = "0ad2b51884de9c7f4fe2fd1043fccb8dcad4b1e29558146ee57a144d15779f3f"
 dependencies = [
  "leb128",
 ]
 
 [[package]]
 name = "wasmparser"
-version = "0.121.2"
+version = "0.118.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dbe55c8f9d0dbd25d9447a5a889ff90c0cc3feaa7395310d3d826b2c703eaab"
+checksum = "95ee9723b928e735d53000dec9eae7b07a60e490c85ab54abb66659fc61bfcd9"
 dependencies = [
- "bitflags 2.4.1",
  "indexmap 2.0.0",
  "semver",
 ]
 
 [[package]]
 name = "wasmtime"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b06f80b13fdeba0ea5267813d0f06af822309f7125fc8db6094bcd485f0a4ae7"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "anyhow",
  "bincode",
  "bumpalo",
  "cfg-if 1.0.0",
- "gimli",
  "indexmap 2.0.0",
  "libc",
  "log",
  "object",
  "once_cell",
  "paste",
- "rustix 0.38.30",
  "serde",
  "serde_derive",
  "serde_json",
@@ -11223,25 +11220,23 @@ dependencies = [
  "wasmparser",
  "wasmtime-cranelift",
  "wasmtime-environ",
- "wasmtime-jit-icache-coherence",
+ "wasmtime-jit",
  "wasmtime-runtime",
- "windows-sys 0.52.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "wasmtime-asm-macros"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19d7395b475c6f858c7edfce375f00d8282a32fbf5d1ebc93eddfac5c2458a52"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "cfg-if 1.0.0",
 ]
 
 [[package]]
 name = "wasmtime-c-api-impl"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29c09ac0c18464f8ef0b554c12defc94e3fc082b62309a3da229de60d47cf75a"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "anyhow",
  "log",
@@ -11253,9 +11248,8 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-c-api-macros"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "864c4a337294fe690f02b39f2b3f45414447d9321d0ed24d3dc7696bf291e789"
+version = "0.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -11263,9 +11257,8 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-cranelift"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "974d9455611e26c97d31705e19545de58fa8867416592bd93b7a54a7fc37cedb"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "anyhow",
  "cfg-if 1.0.0",
@@ -11288,9 +11281,8 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-cranelift-shared"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40667ba458634db703aea3bd960e80bc9352c21d5e765b69f43e3b0c964eb611"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "anyhow",
  "cranelift-codegen",
@@ -11304,12 +11296,10 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-environ"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8da991421528c2767053cb0cfa70b5d28279100dbcf70ed7f74b51abe1656ef"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "anyhow",
- "bincode",
  "cranelift-entity",
  "gimli",
  "indexmap 2.0.0",
@@ -11323,22 +11313,41 @@ dependencies = [
  "wasmtime-types",
 ]
 
+[[package]]
+name = "wasmtime-jit"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
+dependencies = [
+ "anyhow",
+ "bincode",
+ "cfg-if 1.0.0",
+ "gimli",
+ "log",
+ "object",
+ "rustix 0.38.30",
+ "serde",
+ "serde_derive",
+ "target-lexicon",
+ "wasmtime-environ",
+ "wasmtime-jit-icache-coherence",
+ "wasmtime-runtime",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "wasmtime-jit-icache-coherence"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3346431a41fbb0c5af0081c2322361b00289f2902e54ee7b115e9b2ad32b156b"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
- "windows-sys 0.52.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "wasmtime-runtime"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a489353aa297b46a66cde8da48cab8e1e967e7f4b0ae3d9889a0550bf274810b"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "anyhow",
  "cc",
@@ -11358,14 +11367,13 @@ dependencies = [
  "wasmtime-environ",
  "wasmtime-versioned-export-macros",
  "wasmtime-wmemcheck",
- "windows-sys 0.52.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "wasmtime-types"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12c56e31fd7fa707fbd7720b2b29ac42ccfb092fe9d85c98f1d3988f9a1d4558"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "cranelift-entity",
  "serde",
@@ -11376,9 +11384,8 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-versioned-export-macros"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b0300976c36a9427d184e3ecf7c121c2cb3f030844faf9fcb767821e9d4c382"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -11387,9 +11394,8 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-wmemcheck"
-version = "18.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acdf5b8da6ebf7549dad0cd32ca4a3a0461449ef4feec9d0d8450d8da9f51f9b"
+version = "16.0.0"
+source = "git+https://github.com/bytecodealliance/wasmtime?rev=v16.0.0#6613acd1e4817957a4a7745125ef063b43c273a7"
 
 [[package]]
 name = "wayland-backend"
diff --git a/Cargo.toml b/Cargo.toml
index d9196b8d09..eb16dae776 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -238,7 +238,7 @@ tiktoken-rs = "0.5.7"
 time = { version = "0.3", features = ["serde", "serde-well-known", "formatting"] }
 toml = "0.8"
 tower-http = "0.4.4"
-tree-sitter = { version = ">= 0.20.100", features = ["wasm"] }
+tree-sitter = { version = "0.20", features = ["wasm"] }
 tree-sitter-astro = { git = "https://github.com/virchau13/tree-sitter-astro.git", rev = "e924787e12e8a03194f36a113290ac11d6dc10f3" }
 tree-sitter-bash = { git = "https://github.com/tree-sitter/tree-sitter-bash", rev = "7331995b19b8f8aba2d5e26deb51d2195c18bc94" }
 tree-sitter-c = "0.20.1"
@@ -262,7 +262,7 @@ tree-sitter-haskell = { git = "https://github.com/tree-sitter/tree-sitter-haskel
 tree-sitter-hcl = { git = "https://github.com/MichaHoffmann/tree-sitter-hcl", rev = "v1.1.0" }
 tree-sitter-heex = { git = "https://github.com/phoenixframework/tree-sitter-heex", rev = "2e1348c3cf2c9323e87c2744796cf3f3868aa82a" }
 tree-sitter-html = "0.19.0"
-tree-sitter-json = { git = "https://github.com/tree-sitter/tree-sitter-json", rev = "3b129203f4b72d532f58e72c5310c0a7db3b8e6d" }
+tree-sitter-json = { git = "https://github.com/tree-sitter/tree-sitter-json", rev = "40a81c01a40ac48744e0c8ccabbaba1920441199" }
 tree-sitter-lua = "0.0.14"
 tree-sitter-markdown = { git = "https://github.com/MDeiml/tree-sitter-markdown", rev = "330ecab87a3e3a7211ac69bbadc19eabecdb1cca" }
 tree-sitter-nix = { git = "https://github.com/nix-community/tree-sitter-nix", rev = "66e3e9ce9180ae08fc57372061006ef83f0abde7" }
@@ -287,12 +287,13 @@ tree-sitter-zig = { git = "https://github.com/maxxnino/tree-sitter-zig", rev = "
 unindent = "0.1.7"
 url = "2.2"
 uuid = { version = "1.1.2", features = ["v4"] }
-wasmtime = "18.0.1"
+wasmtime = "16"
 which = "6.0.0"
 sys-locale = "0.3.1"
 
 [patch.crates-io]
-tree-sitter = { git = "https://github.com/tree-sitter/tree-sitter", rev = "da7063ba18381fd7dd3c7fc8e1bc43b129818569" }
+tree-sitter = { git = "https://github.com/tree-sitter/tree-sitter", rev = "1d8975319c2d5de1bf710e7e21db25b0eee4bc66" }
+wasmtime = { git = "https://github.com/bytecodealliance/wasmtime", rev = "v16.0.0" }
 # Workaround for a broken nightly build of gpui: See #7644 and revisit once 0.5.3 is released.
 pathfinder_simd = { git = "https://github.com/servo/pathfinder.git", rev = "e4fcda0d5259d0acf902aee6de7d2501f2bd6629" }
 
diff --git a/crates/extension/src/extension_store.rs b/crates/extension/src/extension_store.rs
index 0339e7b3a7..d8434ea895 100644
--- a/crates/extension/src/extension_store.rs
+++ b/crates/extension/src/extension_store.rs
@@ -415,6 +415,10 @@ impl ExtensionStore {
             }));
 
         for language_name in &languages_to_add {
+            if language_name.as_ref() == "Swift" {
+                continue;
+            }
+
             let language = manifest.languages.get(language_name.as_ref()).unwrap();
             let mut language_path = self.extensions_dir.clone();
             language_path.extend([language.extension.as_ref(), language.path.as_path()]);