diff --git a/helix-event/Cargo.toml b/helix-event/Cargo.toml
index 03a86730b..6d86d165b 100644
--- a/helix-event/Cargo.toml
+++ b/helix-event/Cargo.toml
@@ -17,8 +17,8 @@ hashbrown = "0.15"
 tokio = { version = "1", features = ["rt", "rt-multi-thread", "time", "sync", "parking_lot", "macros"] }
 # the event registry is essentially read only but must be an rwlock so we can
 # setup new events on intalization, hardware-lock-elision hugnly benefits this case
-# as is essentially makes the lock entirely free as long as there is no writes 
-once_cell = "1.20"
+# as is essentially makes the lock entirely free as long as there is no writes
+once_cell = "1.21"
 parking_lot = { workspace = true, features = ["hardware-lock-elision"] }
 
 anyhow = "1"