diff --git a/Cargo.toml b/Cargo.toml
index 9e91cf5..2d2a40f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,4 +24,4 @@ icarus_envy = { git = "ssh://git@git.kundeng.us/phoenix/icarus_envy.git", tag =
 [dev-dependencies]
 http-body-util = { version = "0.1.3" }
 url = { version = "2.5.4" }
-once_cell = { version = "1.19" } # Useful for lazy initialization in tests/app setup
+once_cell = { version = "1.21.3" } # Useful for lazy initialization in tests/app setup