diff --git a/Gemfile.lock b/Gemfile.lock
index 53943e8..844b285 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -270,7 +270,8 @@ GEM
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
@@ -302,6 +303,7 @@ GEM
     stimulus-rails (1.3.3)
       railties (>= 6.0.0)
     stripe (10.9.0)
+    strscan (3.1.0)
     sys-uname (1.2.3)
       ffi (~> 1.1)
     thor (1.3.0)