diff --git a/Gemfile.lock b/Gemfile.lock
index 4d50d80ca..cd480e881 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -411,7 +411,7 @@ GEM
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.3.9)
+    rexml (3.4.4)
     roo (2.10.1)
       nokogiri (~> 1)
       rubyzip (>= 1.3.0, < 3.0.0)
diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 9d6af3674..174ecda02 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -226,7 +226,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.3.9)
+    rexml (3.4.2)
     rouge (3.26.0)
     ruby2_keywords (0.0.5)
     rubyzip (2.3.2)