diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dd534c6..5c439d4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ubuntu-latest]
-        php-versions: ['5.4', '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
+        php-versions: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
 
     runs-on: ${{ matrix.operating-system }}
 
diff --git a/composer.json b/composer.json
index c7c584c..79f9ef9 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
 	"homepage": "https://donatstudios.com/PHP-Parser-HTTP_USER_AGENT",
 	"license": "MIT",
 	"require": {
-		"php": ">=5.4.0",
+		"php": ">=7.2.0",
 		"ext-ctype": "*"
 	},
 	"require-dev": {
diff --git a/phpstan.neon b/phpstan.neon
index 8340bc6..2750f24 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -6,4 +6,4 @@ parameters:
 		- bin
 		- examples
 		- .helpers
-	phpVersion: 70100
+	phpVersion: 70200