diff --git a/Gemfile.lock b/Gemfile.lock
index 716fdd01ba..cb163b720f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -222,7 +222,7 @@ GEM
       ruby-rc4 (>= 0.1.5)
     concurrent-ruby (1.2.3)
     connection_pool (2.4.1)
-    crack (0.4.6)
+    crack (1.0.0)
       bigdecimal
       rexml
     crass (1.0.6)
@@ -780,7 +780,7 @@ GEM
       activesupport
       faraday (~> 2.0)
       faraday-follow_redirects
-    webmock (3.20.0)
+    webmock (3.21.2)
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)