diff --git a/Gemfile.lock b/Gemfile.lock
index 07fa4d6..f2dcb58 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,8 @@ GEM
     rainbow (3.0.0)
     rake (13.0.1)
     regexp_parser (2.1.1)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rubocop (1.20.0)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
@@ -33,6 +34,7 @@ GEM
     standard (1.3.0)
       rubocop (= 1.20.0)
       rubocop-performance (= 1.11.5)
+    strscan (3.1.0)
     unicode-display_width (2.1.0)
 
 PLATFORMS