diff --git a/Gemfile.lock b/Gemfile.lock
index cd3e778..237c0d1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,8 +20,7 @@ GEM
     rainbow (3.1.1)
     rake (13.2.1)
     regexp_parser (2.9.2)
-    rexml (3.3.3)
-      strscan
+    rexml (3.4.2)
     rubocop (1.13.0)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
@@ -44,7 +43,6 @@ GEM
       rubocop (~> 1.11)
     ruby-progressbar (1.13.0)
     ruby2_keywords (0.0.5)
-    strscan (3.1.0)
     unicode-display_width (2.5.0)
 
 PLATFORMS