diff --git a/Gemfile.lock b/Gemfile.lock
index 3b7c02a..f815b3e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -82,8 +82,7 @@ GEM
     rb-inotify (0.11.1)
       ffi (~> 1.0)
     redcarpet (3.6.0)
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.9)
     rouge (3.30.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
@@ -91,7 +90,6 @@ GEM
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    strscan (3.1.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     webrick (1.8.1)