diff --git a/ClassicImplementation/Gemfile.lock b/ClassicImplementation/Gemfile.lock
index 9420d89..b04b106 100644
--- a/ClassicImplementation/Gemfile.lock
+++ b/ClassicImplementation/Gemfile.lock
@@ -82,9 +82,11 @@ GEM
     nap (1.1.0)
     netrc (0.11.0)
     public_suffix (4.0.7)
-    rexml (3.2.6)
+    rexml (3.2.9)
+      strscan
     ruby-macho (2.5.1)
     ruby2_keywords (0.0.5)
+    strscan (3.1.0)
     typhoeus (1.4.1)
       ethon (>= 0.9.0)
     tzinfo (2.0.6)