diff --git a/gemfiles/truffleruby/Gemfile.lock b/gemfiles/truffleruby/Gemfile.lock
index 2ccb7db588..201cef9b95 100644
--- a/gemfiles/truffleruby/Gemfile.lock
+++ b/gemfiles/truffleruby/Gemfile.lock
@@ -7,7 +7,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.2)
-    parser (3.3.5.0)
+    parser (3.3.6.0)
       ast (~> 2.4.1)
       racc
     power_assert (2.0.4)