diff --git a/Gemfile.lock b/Gemfile.lock
index d5c25f6..229a665 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -55,8 +55,7 @@ GEM
     rainbow (3.1.1)
     rake (13.2.1)
     regexp_parser (2.9.2)
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.9)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
@@ -91,7 +90,6 @@ GEM
     securerandom (0.3.1)
     sqlite3 (1.7.3)
       mini_portile2 (~> 2.8.0)
-    strscan (3.1.0)
     thor (1.3.1)
     timeout (0.4.1)
     tzinfo (2.0.6)