diff --git a/Gemfile.lock b/Gemfile.lock
index b96ccfa..85c850f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,7 +57,7 @@ GEM
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
     concurrent-ruby (1.3.4)
-    connection_pool (2.4.1)
+    connection_pool (2.5.0)
     crass (1.0.6)
     csv (3.3.2)
     date (3.4.1)