diff --git a/Gemfile.lock b/Gemfile.lock
index 68e29d7..7505b51 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -93,7 +93,8 @@ GEM
     netrc (0.11.0)
     public_suffix (4.0.7)
     rake (13.1.0)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
@@ -109,6 +110,7 @@ GEM
     rspec-support (3.12.1)
     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)