diff --git a/Gemfile.lock b/Gemfile.lock
index 1c656658c16..605466097fc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,7 +38,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.6)
-    rainbow (3.0.0)
+    rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.1.1)
     rexml (3.2.5)