diff --git a/lib/utils.sh b/lib/utils.sh
index acf9fe7f20a66c3798df299126078028dc1cdedd..087e1dcc64564e3bf6628ea1bf0c3c6299a96769 100644
--- a/lib/utils.sh
+++ b/lib/utils.sh
@@ -1,4 +1,4 @@
-RUBY_BUILD_VERSION="${ASDF_RUBY_BUILD_VERSION:-v20191205}"
+RUBY_BUILD_VERSION="${ASDF_RUBY_BUILD_VERSION:-v20191223}"
 RUBY_BUILD_TAG="$RUBY_BUILD_VERSION"
 
 echoerr() {