diff --git a/components/courses/Gemfile.lock b/components/courses/Gemfile.lock
index bfae76f1..1318eb1f 100644
--- a/components/courses/Gemfile.lock
+++ b/components/courses/Gemfile.lock
@@ -144,7 +144,7 @@ GEM
       pry (>= 0.10.4)
     public_suffix (3.0.3)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (2.2.3.1)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.5)