diff --git a/Gemfile.lock b/Gemfile.lock
index aa0e23bb46d..deb3a677a1d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -123,8 +123,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.2)
-      strscan
+    rexml (3.3.9)
     rouge (4.2.1)
     ruby2_keywords (0.0.5)
     safe_yaml (1.0.5)
@@ -139,7 +138,6 @@ GEM
       rack-protection (= 4.0.0)
       rack-session (>= 2.0.0, < 3)
       tilt (~> 2.0)
-    strscan (3.1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     tilt (2.3.0)