diff --git a/Cargo.lock b/Cargo.lock
index 26d01f01..3a5cf387 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1559,9 +1559,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.18.0"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
+checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
 [[package]]
 name = "open"
diff --git a/helix-core/Cargo.toml b/helix-core/Cargo.toml
index 800b7a5d..d7fff6c6 100644
--- a/helix-core/Cargo.toml
+++ b/helix-core/Cargo.toml
@@ -27,7 +27,7 @@ unicode-general-category = "0.6"
 # slab = "0.4.2"
 slotmap = "1.0"
 tree-sitter.workspace = true
-once_cell = "1.18"
+once_cell = "1.19"
 arc-swap = "1"
 regex = "1"
 bitflags = "2.4"
diff --git a/helix-loader/Cargo.toml b/helix-loader/Cargo.toml
index 1a98e94b..c40bf4db 100644
--- a/helix-loader/Cargo.toml
+++ b/helix-loader/Cargo.toml
@@ -20,7 +20,7 @@ serde = { version = "1.0", features = ["derive"] }
 toml = "0.7"
 etcetera = "0.8"
 tree-sitter.workspace = true
-once_cell = "1.18"
+once_cell = "1.19"
 log = "0.4"
 which = "5.0.0"
 
diff --git a/helix-term/Cargo.toml b/helix-term/Cargo.toml
index c868703e..4ff7fc0b 100644
--- a/helix-term/Cargo.toml
+++ b/helix-term/Cargo.toml
@@ -32,7 +32,7 @@ helix-vcs = { path = "../helix-vcs" }
 helix-loader = { path = "../helix-loader" }
 
 anyhow = "1"
-once_cell = "1.18"
+once_cell = "1.19"
 
 which = "5.0.0"
 
diff --git a/helix-tui/Cargo.toml b/helix-tui/Cargo.toml
index c6af90fc..abb6122a 100644
--- a/helix-tui/Cargo.toml
+++ b/helix-tui/Cargo.toml
@@ -24,5 +24,5 @@ unicode-segmentation = "1.10"
 crossterm = { version = "0.27", optional = true }
 termini = "1.0"
 serde = { version = "1", "optional" = true, features = ["derive"]}
-once_cell = "1.18"
+once_cell = "1.19"
 log = "~0.4"
diff --git a/helix-view/Cargo.toml b/helix-view/Cargo.toml
index 5fb6d96b..db53b54c 100644
--- a/helix-view/Cargo.toml
+++ b/helix-view/Cargo.toml
@@ -27,7 +27,7 @@ anyhow = "1"
 crossterm = { version = "0.27", optional = true }
 
 # Conversion traits
-once_cell = "1.18"
+once_cell = "1.19"
 url = "2.5.0"
 
 arc-swap = { version = "1.6.0" }