diff --git a/Gemfile.lock b/Gemfile.lock
index 041467b..c075570 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -86,7 +86,8 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.7)
-    crack (0.4.4)
+    crack (0.4.5)
+      rexml
     crass (1.0.6)
     devise (4.7.3)
       bcrypt (~> 3.0)
@@ -204,6 +205,7 @@ GEM
     responders (3.0.1)
       actionpack (>= 5.0)
       railties (>= 5.0)
+    rexml (3.2.4)
     sassc (2.4.0)
       ffi (~> 1.9)
     sassc-rails (2.1.2)
@@ -242,7 +244,7 @@ GEM
       activemodel (>= 6.0.0)
       bindex (>= 0.4.0)
       railties (>= 6.0.0)
-    webmock (3.11.0)
+    webmock (3.11.1)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)