diff --git a/lib/utils.sh b/lib/utils.sh
index 63d4ebd..e6f54d2 100644
--- a/lib/utils.sh
+++ b/lib/utils.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-RUBY_BUILD_VERSION="${ASDF_RUBY_BUILD_VERSION:-v20251217}"
+RUBY_BUILD_VERSION="${ASDF_RUBY_BUILD_VERSION:-v20251218}"
 RUBY_BUILD_TAG="$RUBY_BUILD_VERSION"
 
 echoerr() {