diff --git a/Gemfile.lock b/Gemfile.lock
index 9dcff2c9f..fd1b2afab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -188,7 +188,7 @@ GEM
     docile (1.3.4)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
-    doorkeeper (5.5.3)
+    doorkeeper (5.5.4)
       railties (>= 5)
     dotenv (2.7.6)
     dotenv-rails (2.7.6)