diff --git a/Gemfile.lock b/Gemfile.lock
index 60b3b93..a6ec00d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,8 +4,10 @@ GEM
     docopt (0.6.1)
     liquid (5.1.0)
     rake (13.0.6)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rugged (1.2.0)
+    strscan (3.1.0)
     xml-simple (1.1.9)
       rexml
     zip (2.0.2)