diff --git a/Gemfile.lock b/Gemfile.lock
index a05c75b..a457222 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -32,7 +32,7 @@ GEM
     climate_control (1.2.0)
     coderay (1.1.3)
     concurrent-ruby (1.2.2)
-    connection_pool (2.3.0)
+    connection_pool (2.4.0)
     deep_merge (1.2.2)
     diff-lcs (1.5.0)
     docile (1.4.0)