diff --git a/Gemfile.lock b/Gemfile.lock
index eb937325..8f087b76 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -287,7 +287,8 @@ GEM
     rake (13.1.0)
     regexp_parser (2.7.0)
     resolv (0.3.0)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (4.2.0)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
@@ -352,6 +353,7 @@ GEM
       actionpack (>= 5.2)
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
+    strscan (3.1.0)
     swd (2.0.3)
       activesupport (>= 3)
       attr_required (>= 0.0.5)