diff --git a/lib/utils.sh b/lib/utils.sh
index 7e75f5dd63095b7d14a9a1f2ee86fadb9352f25b..acf9fe7f20a66c3798df299126078028dc1cdedd 100644
--- a/lib/utils.sh
+++ b/lib/utils.sh
@@ -1,4 +1,4 @@
-RUBY_BUILD_VERSION="${ASDF_RUBY_BUILD_VERSION:-v20191124}"
+RUBY_BUILD_VERSION="${ASDF_RUBY_BUILD_VERSION:-v20191205}"
 RUBY_BUILD_TAG="$RUBY_BUILD_VERSION"
 
 echoerr() {