diff --git a/Gemfile.lock b/Gemfile.lock
index b85879dec..3af98a43d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -209,7 +209,7 @@ GEM
     docile (1.3.2)
     domain_name (0.5.20180417)
       unf (>= 0.0.5, < 1.0.0)
-    doorkeeper (5.2.0)
+    doorkeeper (5.2.1)
       railties (>= 5)
     dotenv (2.7.5)
     dotenv-rails (2.7.5)