diff --git a/.github/workflows/build-and-push-containers.yml b/.github/workflows/build-and-push-containers.yml
index 3d3bba33..937bf94b 100644
--- a/.github/workflows/build-and-push-containers.yml
+++ b/.github/workflows/build-and-push-containers.yml
@@ -35,7 +35,7 @@ jobs:
           password: ${{ secrets.CONTAINER_PAT }}
 
       - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: ./Dockerfile
diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index d39ac3ce..c5bc7d1c 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -43,7 +43,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Build container for CI pipeline
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           load: true
@@ -125,7 +125,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Build
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           push: false
 
diff --git a/package-lock.json b/package-lock.json
index d5e7d9c2..75bfd65f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,7 +27,7 @@
                 "source-map-loader": "^5.0.0",
                 "ts-jest": "^29.0.3",
                 "ts-node": "^10.9.1",
-                "typescript": "~5.4.0",
+                "typescript": "~5.5.0",
                 "webpack": "^5.74.0",
                 "webpack-cli": "^5.0.0"
             },
@@ -7550,10 +7550,11 @@
             }
         },
         "node_modules/typescript": {
-            "version": "5.4.5",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.4.5.tgz",
-            "integrity": "sha512-vcI4UpRgg81oIRUFwR0WSIHKt11nJ7SAVlYNIu+QpqeyXP+gpQJy/Z4+F0aGxSE4MqwjyXvW/TzgkLAx2AGHwQ==",
+            "version": "5.5.2",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.2.tgz",
+            "integrity": "sha512-NcRtPEOsPFFWjobJEtfihkLCZCXZt/os3zf8nTxjVH3RvTSxjrCamJpbExGvYOF+tFHc3pA65qpdwPbzjohhew==",
             "dev": true,
+            "license": "Apache-2.0",
             "bin": {
                 "tsc": "bin/tsc",
                 "tsserver": "bin/tsserver"
diff --git a/package.json b/package.json
index 0bac52b3..baaca8f8 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
         "source-map-loader": "^5.0.0",
         "ts-jest": "^29.0.3",
         "ts-node": "^10.9.1",
-        "typescript": "~5.4.0",
+        "typescript": "~5.5.0",
         "webpack": "^5.74.0",
         "webpack-cli": "^5.0.0"
     }
diff --git a/src/config/app.spec.ts b/src/config/app.spec.ts
index 80b4c718..1ff13b5c 100644
--- a/src/config/app.spec.ts
+++ b/src/config/app.spec.ts
@@ -18,9 +18,9 @@ describe('config/app', () => {
             ${'8.1'}                       | ${[ '8.1' ]}
             ${'8.1.0'}                     | ${[ '8.1' ]}
             ${'8.1.12'}                    | ${[ '8.1' ]}
-            ${'^8.1'}                      | ${[ '8.1', '8.2', '8.3' ]}
-            ${'^8.1.0'}                    | ${[ '8.1', '8.2', '8.3' ]}
-            ${'^8.1.12'}                   | ${[ '8.1', '8.2', '8.3' ]}
+            ${'^8.1'}                      | ${[ '8.1', '8.2', '8.3', '8.4' ]}
+            ${'^8.1.0'}                    | ${[ '8.1', '8.2', '8.3', '8.4' ]}
+            ${'^8.1.12'}                   | ${[ '8.1', '8.2', '8.3', '8.4' ]}
             ${'~8.1'}                      | ${[ '8.1' ]}
             ${'~8.1.0'}                    | ${[ '8.1' ]}
             ${'~8.1.12'}                   | ${[ '8.1' ]}
@@ -48,7 +48,7 @@ describe('config/app', () => {
                 codeChecks                    : true,
                 docLinting                    : true,
                 versions                      : [ '8.1' ],
-                stablePhpVersion              : '8.0',
+                stablePhpVersion              : '8.1',
                 minimumPhpVersion             : '8.1',
                 latestPhpVersion              : '8.1',
                 lockedDependenciesExists      : false,
diff --git a/src/config/php.ts b/src/config/php.ts
index 04882e41..4a77577e 100644
--- a/src/config/php.ts
+++ b/src/config/php.ts
@@ -8,8 +8,9 @@ export const PHP_80 = '8.0';
 export const PHP_81 = '8.1';
 export const PHP_82 = '8.2';
 export const PHP_83 = '8.3';
+export const PHP_84 = '8.4';
 
-export const CURRENT_STABLE = PHP_80;
+export const CURRENT_STABLE = PHP_81;
 export const CONTAINER_DEFAULT_PHP_VERSION = '@default';
 
 /**
@@ -27,6 +28,7 @@ export const INSTALLABLE_VERSIONS = [
     PHP_81,
     PHP_82,
     PHP_83,
+    PHP_84,
     CONTAINER_DEFAULT_PHP_VERSION,
 ] as const;