diff --git a/Gemfile.lock b/Gemfile.lock
index d8164b4..111c189 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -114,11 +114,13 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     redcarpet (3.6.0)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (3.30.0)
     sassc (2.4.0)
       ffi (~> 1.9)
     servolux (0.13.0)
+    strscan (3.1.0)
     temple (0.10.3)
     terser (1.2.2)
       execjs (>= 0.3.0, < 3)