diff --git a/Gemfile.lock b/Gemfile.lock
index edc9feb..b2ac049 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -37,8 +37,7 @@ GEM
     rake (13.0.6)
     rbzip2 (0.3.0)
     regexp_parser (2.7.0)
-    rexml (3.3.3)
-      strscan
+    rexml (3.4.2)
     rubocop (0.93.1)
       parallel (~> 1.10)
       parser (>= 2.7.1.5)
@@ -55,7 +54,6 @@ GEM
       sigdump (~> 0.2.2)
     sigdump (0.2.5)
     strptime (0.2.5)
-    strscan (3.1.0)
     test-unit (3.5.7)
       power_assert
     tzinfo (2.0.6)