diff --git a/Gemfile.lock b/Gemfile.lock
index f44ef5b2a..1ddcabf18 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -81,8 +81,7 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     regexp_parser (2.9.0)
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.9)
     rouge (3.30.0)
     rubyzip (2.3.2)
     safe_yaml (1.0.5)
@@ -93,7 +92,6 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
     simpleidn (0.2.1)
       unf (~> 0.1.4)
-    strscan (3.1.0)
     typhoeus (1.4.1)
       ethon (>= 0.9.0)
     unf (0.1.4)