diff --git a/Gemfile.lock b/Gemfile.lock
index e581ad5..5f72dd9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -256,8 +256,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.9)
     rouge (3.26.0)
     ruby-rc4 (0.1.5)
     ruby2_keywords (0.0.5)
@@ -273,7 +272,6 @@ GEM
       faraday (>= 0.17.3, < 3)
     simpleidn (0.2.1)
       unf (~> 0.1.4)
-    strscan (3.1.0)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     timers (4.3.5)