diff --git a/Gemfile.lock b/Gemfile.lock
index 711b130b..e4bab5c9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -444,7 +444,8 @@ GEM
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rolify (6.0.1)
     rqrcode (2.2.0)
       chunky_png (~> 1.0)
@@ -563,6 +564,7 @@ GEM
       dante (>= 0.2.0)
       multi_json (~> 1.0)
       stripe (> 5, < 6)
+    strscan (3.1.0)
     sysexits (1.2.0)
     temple (0.10.3)
     thor (1.3.1)