diff --git a/.github/workflows/autoformat.yml b/.github/workflows/autoformat.yml
index b3b4fa27c..1c79ca4f8 100644
--- a/.github/workflows/autoformat.yml
+++ b/.github/workflows/autoformat.yml
@@ -16,7 +16,7 @@ jobs:
         with:
           coverage: none
           extensions: mbstring
-          php-version: 7.4
+          php-version: 8.0
 
       - run: composer install --no-interaction --no-progress --no-suggest
 
@@ -52,7 +52,7 @@ jobs:
         with:
           coverage: none
           extensions: mbstring
-          php-version: 7.4
+          php-version: 8.0
 
       - run: composer install --no-interaction --no-progress --no-suggest
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5092ecb2a..71f630a5d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,14 +16,13 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.4"
           - "8.0"
           - "8.1"
         dependencies:
           - "highest"
         include:
           - dependencies: "lowest"
-            php-version: "7.4"
+            php-version: "8.0"
 
     steps:
       - name: "Checkout"
@@ -89,7 +88,7 @@ jobs:
         uses: "shivammathur/setup-php@v2"
         with:
           # Run on the lowest support version to ensure compatibility
-          php-version: "7.4"
+          php-version: "8.0"
           coverage: "none"
 
       - name: "Install dependencies with Composer"
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 0603e255b..3225021b8 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -14,7 +14,6 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.4"
           - "8.0"
           - "8.1"
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed826bdd7..48b2939ca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,7 +11,7 @@ You can find and compare releases at the [GitHub release page](https://github.co
 
 ### Changed
 
-- PHP version required: 7.4+
+- PHP version required: 8.0+
 - Propagate error message and stack trace for why leaf value serialization failed
 - Do not throw client safe `Error` when failing to serialize an Enum type
 - Use native PHP types for properties of `Type` and its subclasses
diff --git a/composer.json b/composer.json
index 4de691c9c..627d83d61 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
   ],
   "homepage": "https://github.com/webonyx/graphql-php",
   "require": {
-    "php": "^7.4 || ^8",
+    "php": "^8",
     "ext-json": "*",
     "ext-mbstring": "*"
   },