diff --git a/Cargo.lock b/Cargo.lock
index 12689d87..47d89bcf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -703,9 +703,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.10.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
+checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225"
 
 [[package]]
 name = "parking_lot"
diff --git a/helix-core/Cargo.toml b/helix-core/Cargo.toml
index 9973516b..8d6a343f 100644
--- a/helix-core/Cargo.toml
+++ b/helix-core/Cargo.toml
@@ -25,7 +25,7 @@ unicode-general-category = "0.5"
 # slab = "0.4.2"
 slotmap = "1.0"
 tree-sitter = "0.20"
-once_cell = "1.10"
+once_cell = "1.12"
 arc-swap = "1"
 regex = "1"
 
diff --git a/helix-loader/Cargo.toml b/helix-loader/Cargo.toml
index 3a900f4a..aee03fc2 100644
--- a/helix-loader/Cargo.toml
+++ b/helix-loader/Cargo.toml
@@ -15,7 +15,7 @@ serde = { version = "1.0", features = ["derive"] }
 toml = "0.5"
 etcetera = "0.4"
 tree-sitter = "0.20"
-once_cell = "1.9"
+once_cell = "1.12"
 
 log = "0.4"
 
diff --git a/helix-term/Cargo.toml b/helix-term/Cargo.toml
index 706453ae..9be29b0f 100644
--- a/helix-term/Cargo.toml
+++ b/helix-term/Cargo.toml
@@ -30,7 +30,7 @@ helix-dap = { version = "0.6", path = "../helix-dap" }
 helix-loader = { version = "0.6", path = "../helix-loader" }
 
 anyhow = "1"
-once_cell = "1.10"
+once_cell = "1.12"
 
 which = "4.2"
 ropey = { version = "1.4", default-features = false }
diff --git a/helix-view/Cargo.toml b/helix-view/Cargo.toml
index ce3f1af4..77634ce5 100644
--- a/helix-view/Cargo.toml
+++ b/helix-view/Cargo.toml
@@ -22,7 +22,7 @@ helix-dap = { version = "0.6", path = "../helix-dap" }
 crossterm = { version = "0.23", optional = true }
 
 # Conversion traits
-once_cell = "1.10"
+once_cell = "1.12"
 url = "2"
 
 arc-swap = { version = "1.5.0" }