diff --git a/Gemfile.lock b/Gemfile.lock
index a60305f..74b2302 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,8 +52,8 @@ GEM
     rainbow (3.1.1)
     rake (13.0.1)
     regexp_parser (2.9.0)
-    rexml (3.2.8)
-      strscan (>= 3.0.9)
+    rexml (3.3.6)
+      strscan
     rspec (3.5.0)
       rspec-core (~> 3.5.0)
       rspec-expectations (~> 3.5.0)