diff --git a/Gemfile.lock b/Gemfile.lock
index 1c896604..a8310e50 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -223,7 +223,7 @@ GEM
       rake (>= 10, < 13)
       rubocop (>= 0.47.0)
       sysexits (~> 1.1)
-    hashdiff (0.3.4)
+    hashdiff (0.3.7)
     hashie (3.5.7)
     htmlentities (4.3.4)
     http-cookie (1.0.3)
@@ -363,7 +363,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    public_suffix (3.0.2)
+    public_suffix (3.0.3)
     puma (3.12.0)
     rack (2.0.5)
     rack-openid (1.3.1)
@@ -565,7 +565,7 @@ GEM
       binding_of_caller (>= 0.7.2)
       railties (>= 4.0)
       sprockets-rails (>= 2.0, < 4.0)
-    webmock (3.0.1)
+    webmock (3.4.2)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff