diff --git a/Cargo.lock b/Cargo.lock
index ecbc0a14d..93459aa07 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -753,9 +753,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.15.0"
+version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1"
+checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860"
 
 [[package]]
 name = "parking_lot"
diff --git a/helix-core/Cargo.toml b/helix-core/Cargo.toml
index 7585c3476..45272f980 100644
--- a/helix-core/Cargo.toml
+++ b/helix-core/Cargo.toml
@@ -26,7 +26,7 @@ unicode-general-category = "0.6"
 # slab = "0.4.2"
 slotmap = "1.0"
 tree-sitter = "0.20"
-once_cell = "1.15"
+once_cell = "1.16"
 arc-swap = "1"
 regex = "1"
 bitflags = "1.3"
diff --git a/helix-loader/Cargo.toml b/helix-loader/Cargo.toml
index b4541de5f..760205e1f 100644
--- a/helix-loader/Cargo.toml
+++ b/helix-loader/Cargo.toml
@@ -19,7 +19,7 @@ serde = { version = "1.0", features = ["derive"] }
 toml = "0.5"
 etcetera = "0.4"
 tree-sitter = "0.20"
-once_cell = "1.15"
+once_cell = "1.16"
 log = "0.4"
 
 # TODO: these two should be on !wasm32 only
diff --git a/helix-term/Cargo.toml b/helix-term/Cargo.toml
index 30de5589f..485cabe90 100644
--- a/helix-term/Cargo.toml
+++ b/helix-term/Cargo.toml
@@ -32,7 +32,7 @@ helix-dap = { version = "0.6", path = "../helix-dap" }
 helix-loader = { version = "0.6", path = "../helix-loader" }
 
 anyhow = "1"
-once_cell = "1.15"
+once_cell = "1.16"
 
 which = "4.2"
 
diff --git a/helix-view/Cargo.toml b/helix-view/Cargo.toml
index b96a537d0..a2a88001b 100644
--- a/helix-view/Cargo.toml
+++ b/helix-view/Cargo.toml
@@ -23,7 +23,7 @@ helix-dap = { version = "0.6", path = "../helix-dap" }
 crossterm = { version = "0.25", optional = true }
 
 # Conversion traits
-once_cell = "1.15"
+once_cell = "1.16"
 url = "2"
 
 arc-swap = { version = "1.5.1" }