diff --git a/Gemfile.lock b/Gemfile.lock
index 24ad9ecf..49c83497 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -100,7 +100,7 @@ GEM
     popper_js (1.14.5)
     puma (4.3.5)
       nio4r (~> 2.0)
-    rack (2.2.3)
+    rack (2.2.6.3)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (5.0.7.2)