diff --git a/src/CustomSlotInitializable.sol b/src/CustomSlotInitializable.sol
index f752fb1..b666d1b 100644
--- a/src/CustomSlotInitializable.sol
+++ b/src/CustomSlotInitializable.sol
@@ -142,7 +142,7 @@ abstract contract CustomSlotInitializable {
      * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
      * a contract, executing them in the right order is up to the developer or operator.
      *
-     * WARNING: setting the version to 255 will prevent any future reinitialization.
+     * WARNING: setting the version to type(uint64).max will prevent any future reinitialization.
      *
      * Emits an {Initialized} event.
      */