diff --git a/Gemfile.lock b/Gemfile.lock
index c3065c1..f2762a6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -51,7 +51,7 @@ GEM
       simpleidn (~> 0.2)
     language_server-protocol (3.17.0.3)
     minitest (5.23.0)
-    mocha (2.2.0)
+    mocha (2.3.0)
       ruby2_keywords (>= 0.0.5)
     mutex_m (0.2.0)
     net-http (0.4.1)