diff --git a/Gemfile.lock b/Gemfile.lock
index 407064db..bb6a2c21 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -55,7 +55,7 @@ GEM
       simplecov (>= 0.7)
       term-ansicolor
       thor
-    crack (1.0.0)
+    crack (1.0.1)
       bigdecimal
       rexml
     crass (1.0.6)
@@ -100,7 +100,7 @@ GEM
       guard (~> 2.1)
       guard-compat (~> 1.1)
       rspec (>= 2.99.0, < 4.0)
-    hashdiff (1.1.2)
+    hashdiff (1.2.1)
     http-accept (1.7.0)
     http-cookie (1.0.7)
       domain_name (~> 0.5)
@@ -170,7 +170,7 @@ GEM
     psych (5.2.6)
       date
       stringio
-    public_suffix (6.0.1)
+    public_suffix (6.0.2)
     racc (1.8.1)
     rack (3.2.4)
     rack-session (2.1.1)
@@ -214,7 +214,7 @@ GEM
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
     retryable (3.0.5)
-    rexml (3.3.9)
+    rexml (3.4.4)
     rspec (3.13.2)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
@@ -280,7 +280,7 @@ GEM
     useragent (0.16.10)
     vcr (6.3.1)
       base64
-    webmock (3.24.0)
+    webmock (3.26.1)
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)