diff --git a/.github/settings.yml b/.github/settings.yml
index 3bb6385e..059fcf93 100644
--- a/.github/settings.yml
+++ b/.github/settings.yml
@@ -14,14 +14,11 @@ branches:
         required_approving_review_count: 1
       required_status_checks:
         checks:
-          - context: "Code Coverage (7.4, locked)"
-          - context: "Coding Standards (7.4, locked)"
-          - context: "Dependency Analysis (7.4, locked)"
-          - context: "Mutation Tests (7.4, locked)"
-          - context: "Static Code Analysis (7.4, locked)"
-          - context: "Tests (7.4, highest)"
-          - context: "Tests (7.4, locked)"
-          - context: "Tests (7.4, lowest)"
+          - context: "Code Coverage (8.0, locked)"
+          - context: "Coding Standards (8.0, locked)"
+          - context: "Dependency Analysis (8.0, locked)"
+          - context: "Mutation Tests (8.0, locked)"
+          - context: "Static Code Analysis (8.0, locked)"
           - context: "Tests (8.0, highest)"
           - context: "Tests (8.0, locked)"
           - context: "Tests (8.0, lowest)"
diff --git a/.github/workflows/integrate.yaml b/.github/workflows/integrate.yaml
index 1cb5af42..3c635751 100644
--- a/.github/workflows/integrate.yaml
+++ b/.github/workflows/integrate.yaml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.4"
+          - "8.0"
 
         dependencies:
           - "locked"
@@ -73,7 +73,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.4"
+          - "8.0"
 
         dependencies:
           - "locked"
@@ -141,7 +141,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.4"
+          - "8.0"
 
         dependencies:
           - "locked"
@@ -186,7 +186,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.4"
+          - "8.0"
 
         dependencies:
           - "locked"
@@ -233,7 +233,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.4"
+          - "8.0"
 
         dependencies:
           - "locked"
@@ -281,7 +281,6 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.4"
           - "8.0"
           - "8.1"
 
diff --git a/.github/workflows/renew.yaml b/.github/workflows/renew.yaml
index 3af8e8ed..1d73bd37 100644
--- a/.github/workflows/renew.yaml
+++ b/.github/workflows/renew.yaml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.4"
+          - "8.0"
 
         dependencies:
           - "locked"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b64eb0ba..936764e5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 For a full diff see [`3.2.0...main`][3.2.0...main].
 
+### Changed
+
+- Dropped support for PHP 7.4 ([#520]), by [@localheinz]
+
 ## [`3.2.0`][3.2.0]
 
 For a full diff see [`3.1.1...3.2.0`][3.1.1...3.2.0].
@@ -150,6 +154,7 @@ For a full diff see [`8849fc6...1.0.0`][8849fc6...1.0.0].
 [#199]: https://github.com/ergebnis/json-printer/pull/199
 [#404]: https://github.com/ergebnis/json-printer/pull/404
 [#410]: https://github.com/ergebnis/json-printer/pull/410
+[#520]: https://github.com/ergebnis/json-printer/pull/520
 
 [@ergebnis]: https://github.com/ergebnis
 [@localheinz]: https://github.com/localheinz
diff --git a/composer.json b/composer.json
index 0a57005f..e8638f20 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
     "source": "https://github.com/ergebnis/json-printer"
   },
   "require": {
-    "php": "^7.4 || ^8.0",
+    "php": "^8.0",
     "ext-json": "*",
     "ext-mbstring": "*"
   },
@@ -49,7 +49,7 @@
       "infection/extension-installer": true
     },
     "platform": {
-      "php": "7.4.26"
+      "php": "8.0.25"
     },
     "preferred-install": "dist",
     "sort-packages": true
diff --git a/composer.lock b/composer.lock
index bc000195..66c6d7b2 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "b5ab538230e250888e273989d86a043b",
+    "content-hash": "ccab3306ae9744b44401b29c78a234b7",
     "packages": [],
     "packages-dev": [
         {
@@ -5667,13 +5667,13 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "^7.4 || ^8.0",
+        "php": "^8.0",
         "ext-json": "*",
         "ext-mbstring": "*"
     },
     "platform-dev": [],
     "platform-overrides": {
-        "php": "7.4.26"
+        "php": "8.0.25"
     },
     "plugin-api-version": "2.3.0"
 }