diff --git a/Gemfile.lock b/Gemfile.lock
index 48af3e7c..cbbb8bf5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -466,7 +466,7 @@ GEM
       rails (>= 4.2.0, < 6.0)
     quantile (0.2.1)
     racc (1.6.0)
-    rack (2.2.3)
+    rack (2.2.3.1)
     rack-protection (2.0.7)
       rack
     rack-test (0.6.3)