diff --git a/components/courses/Gemfile.lock b/components/courses/Gemfile.lock
index bfae76f1..fc3a8949 100644
--- a/components/courses/Gemfile.lock
+++ b/components/courses/Gemfile.lock
@@ -226,7 +226,7 @@ GEM
     thor (1.1.0)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    tzinfo (1.2.9)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)