diff --git a/Gemfile.lock b/Gemfile.lock
index c6c76b7..feebd14 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -261,8 +261,7 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     regexp_parser (2.8.3)
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.9)
     rouge (3.26.0)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
@@ -293,7 +292,6 @@ GEM
       rubyzip (>= 1.2.2)
     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)
     typhoeus (1.4.1)