diff --git a/Gemfile.lock b/Gemfile.lock
index 98e9214..003cbf0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -135,7 +135,7 @@ GEM
     diff-lcs (1.5.0)
     dnsimple (8.7.1)
       httparty
-    doorkeeper (5.6.8)
+    doorkeeper (5.6.9)
       railties (>= 5)
     doorkeeper-device_authorization_grant (1.0.3)
       doorkeeper (~> 5.5)