diff --git a/Gemfile.lock b/Gemfile.lock
index bf7c3c76f..ca6befa2a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -225,7 +225,7 @@ GEM
     docile (1.4.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
-    doorkeeper (5.6.4)
+    doorkeeper (5.6.5)
       railties (>= 5)
     dotenv (2.8.1)
     dotenv-rails (2.8.1)