diff --git a/Gemfile.lock b/Gemfile.lock
index 49deb761b8e..21c5c4e73b1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -111,7 +111,7 @@ GEM
       cbor (~> 0.5.9)
       openssl-signature_algorithm (~> 1.0)
     cppjieba_rb (0.4.2)
-    crack (0.4.6)
+    crack (1.0.0)
       bigdecimal
       rexml
     crass (1.0.6)