diff --git a/Gemfile b/Gemfile
index cbe004291..0bb2bd54c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -33,7 +33,7 @@ gem "delayed_job_active_record", "~> 4.1" # ActiveRecord backend for Delayed::Jo
 gem "delayed_job_web", "~> 1.4" # Web interface for delayed_job
 gem "devise", "~> 4.7" # Flexible authentication solution for Rails
 gem "dogstatsd-ruby", "~> 4.6" # A client for DogStatsD, an extension of the StatsD metric server for Datadog
-gem "doorkeeper", "~> 5.2" # Oauth 2 provider
+gem "doorkeeper", "~> 5.3" # Oauth 2 provider
 gem "draper", "~> 3.1" # Draper adds an object-oriented layer of presentation logic to your Rails apps
 gem "dry-struct", "~> 1.2" # Typed structs and value objects
 gem "elasticsearch", "~> 7.4" # Powers DEVs core search functionality
diff --git a/Gemfile.lock b/Gemfile.lock
index 701eb8bb9..228cb033d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -241,7 +241,7 @@ GEM
     dogstatsd-ruby (4.6.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
-    doorkeeper (5.2.3)
+    doorkeeper (5.3.0)
       railties (>= 5)
     draper (3.1.0)
       actionpack (>= 5.0)
@@ -901,7 +901,7 @@ DEPENDENCIES
   derailed_benchmarks (~> 1.6)
   devise (~> 4.7)
   dogstatsd-ruby (~> 4.6)
-  doorkeeper (~> 5.2)
+  doorkeeper (~> 5.3)
   draper (~> 3.1)
   dry-struct (~> 1.2)
   elasticsearch (~> 7.4)