diff --git a/tests/Gemfile.lock b/tests/Gemfile.lock
index bcf701e..61a6771 100644
--- a/tests/Gemfile.lock
+++ b/tests/Gemfile.lock
@@ -33,7 +33,7 @@ GEM
       rack (>= 1.3)
     rake (13.0.6)
     regexp_parser (2.9.0)
-    rexml (3.3.3)
+    rexml (3.3.6)
       strscan
     strscan (3.1.0)
     vcr (6.2.0)