diff --git a/Gemfile.lock b/Gemfile.lock
index 500d6eae8..7fc1f0df0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,17 +9,19 @@ GEM
     maruku (0.7.3)
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
-    rack (2.2.7)
+    rack (2.2.9)
     rack-protection (3.0.6)
       rack
     rack-ssl-enforcer (0.2.9)
-    rexml (3.2.5)
+    rexml (3.2.7)
+      strscan (>= 3.0.9)
     ruby2_keywords (0.0.5)
     sinatra (3.0.6)
       mustermann (~> 3.0)
       rack (~> 2.2, >= 2.2.4)
       rack-protection (= 3.0.6)
       tilt (~> 2.0)
+    strscan (3.1.0)
     thin (1.8.2)
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)