diff --git a/.app_version b/.app_version
index 16eb94e7..6aec9e54 100644
--- a/.app_version
+++ b/.app_version
@@ -1 +1 @@
-0.21.3
+0.21.4
diff --git a/.github/workflows/build_and_push.yml b/.github/workflows/build_and_push.yml
index 001c11e4..2c1ebe4c 100644
--- a/.github/workflows/build_and_push.yml
+++ b/.github/workflows/build_and_push.yml
@@ -23,7 +23,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
       - name: Cache Docker layers
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: /tmp/.buildx-cache
           key: ${{ runner.os }}-buildx-${{ github.sha }}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 67fb87fc..8962c791 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+# 0.21.4 - 2025-01-05
+
+### Fixed
+
+- Fixed a bug where Photon API for patreon supporters was not being used for reverse geocoding.
+
 # 0.21.3 - 2025-01-04
 
 ### Added
diff --git a/config/initializers/01_constants.rb b/config/initializers/01_constants.rb
index d8cc2d81..bfa380b6 100644
--- a/config/initializers/01_constants.rb
+++ b/config/initializers/01_constants.rb
@@ -3,6 +3,7 @@
 MIN_MINUTES_SPENT_IN_CITY = ENV.fetch('MIN_MINUTES_SPENT_IN_CITY', 60).to_i
 REVERSE_GEOCODING_ENABLED = ENV.fetch('REVERSE_GEOCODING_ENABLED', 'true') == 'true'
 PHOTON_API_HOST = ENV.fetch('PHOTON_API_HOST', nil)
+PHOTON_API_KEY = ENV.fetch('PHOTON_API_KEY', nil)
 PHOTON_API_USE_HTTPS = ENV.fetch('PHOTON_API_USE_HTTPS', 'true') == 'true'
 DISTANCE_UNIT = ENV.fetch('DISTANCE_UNIT', 'km').to_sym
 APP_VERSION = File.read('.app_version').strip