diff --git a/.github/settings.yml b/.github/settings.yml
index 5950a550..8406639a 100644
--- a/.github/settings.yml
+++ b/.github/settings.yml
@@ -14,14 +14,11 @@ branches:
         required_approving_review_count: 1
       required_status_checks:
         contexts:
-          - "Code Coverage (7.3, locked)"
-          - "Coding Standards (7.3, locked)"
-          - "Dependency Analysis (7.3, locked)"
-          - "Mutation Tests (7.3, locked)"
-          - "Static Code Analysis (7.3, locked)"
-          - "Tests (7.3, highest)"
-          - "Tests (7.3, locked)"
-          - "Tests (7.3, lowest)"
+          - "Code Coverage (7.4, locked)"
+          - "Coding Standards (7.4, locked)"
+          - "Dependency Analysis (7.4, locked)"
+          - "Mutation Tests (7.4, locked)"
+          - "Static Code Analysis (7.4, locked)"
           - "Tests (7.4, highest)"
           - "Tests (7.4, locked)"
           - "Tests (7.4, lowest)"
diff --git a/.github/workflows/integrate.yaml b/.github/workflows/integrate.yaml
index 64627142..464aeb26 100644
--- a/.github/workflows/integrate.yaml
+++ b/.github/workflows/integrate.yaml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.3"
+          - "7.4"
 
         dependencies:
           - "locked"
@@ -87,7 +87,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.3"
+          - "7.4"
 
         dependencies:
           - "locked"
@@ -129,7 +129,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.3"
+          - "7.4"
 
         dependencies:
           - "locked"
@@ -174,7 +174,6 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.3"
           - "7.4"
           - "8.0"
           - "8.1"
@@ -224,7 +223,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.3"
+          - "7.4"
 
         dependencies:
           - "locked"
@@ -274,7 +273,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.3"
+          - "7.4"
 
         dependencies:
           - "locked"
diff --git a/.github/workflows/renew.yaml b/.github/workflows/renew.yaml
index 7758d5b3..90895d1d 100644
--- a/.github/workflows/renew.yaml
+++ b/.github/workflows/renew.yaml
@@ -18,7 +18,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.3"
+          - "7.4"
 
         dependencies:
           - "locked"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 270bda85..087af6f3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ For a full diff see [`1.1.0...main`][1.1.0...main].
 ## Changed
 
 - Dropped support for PHP 7.2 ([#416]), by [@localheinz]
+- Dropped support for PHP 7.3 ([#421]), by [@localheinz]
 
 ## [`1.1.0`][1.1.0]
 
@@ -69,5 +70,6 @@ For a full diff see [`675601b...0.1.0`][675601b...0.1.0].
 [#171]: https://github.com/ergebnis/license/pull/171
 [#177]: https://github.com/ergebnis/license/pull/177
 [#416]: https://github.com/ergebnis/license/pull/416
+[#421]: https://github.com/ergebnis/license/pull/421
 
 [@localheinz]: https://github.com/localheinz
diff --git a/composer.json b/composer.json
index 15e2ccd3..4c582855 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     "source": "https://github.com/ergebnis/license"
   },
   "require": {
-    "php": "^7.3 || ^8.0",
+    "php": "^7.4 || ^8.0",
     "ext-filter": "*"
   },
   "require-dev": {
@@ -47,7 +47,7 @@
       "ergebnis/composer-normalize": true
     },
     "platform": {
-      "php": "7.3.32"
+      "php": "7.4.26"
     },
     "preferred-install": "dist",
     "sort-packages": true
diff --git a/composer.lock b/composer.lock
index f14b8641..340d2b3c 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": "9260b59decc36f0a7083eb4c913cbd26",
+    "content-hash": "ee54e3af87881464f99f2d610875dd11",
     "packages": [],
     "packages-dev": [
         {
@@ -5658,12 +5658,12 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "^7.3 || ^8.0",
+        "php": "^7.4 || ^8.0",
         "ext-filter": "*"
     },
     "platform-dev": [],
     "platform-overrides": {
-        "php": "7.3.32"
+        "php": "7.4.26"
     },
-    "plugin-api-version": "2.1.0"
+    "plugin-api-version": "2.2.0"
 }