diff --git a/Makefile b/Makefile
index 50cceeb..70548e7 100644
--- a/Makefile
+++ b/Makefile
@@ -42,10 +42,10 @@ test: ## Run the unit and integration testsuites.
 test: lint test-unit
 
 lint: ## Run phpcs against the code.
-	${DOCKER_RUN} vendor/bin/phpcs -p --warning-severity=0 src/ tests/
+	${DOCKER_RUN} vendor/bin/phpcs --standard=./phpcs.xml -p --warning-severity=0 src/ tests/
 
 lint-fix: ## Run phpcsf and fix possible lint errors.
-	${DOCKER_RUN} vendor/bin/phpcbf -p src/ tests/
+	${DOCKER_RUN} vendor/bin/phpcbf --standard=./phpcs.xml -p src/ tests/
 
 test-unit: ## Run the unit testsuite.
 	${DOCKER_RUN} vendor/bin/phpunit --testsuite unit
@@ -63,6 +63,12 @@ test-matrix-lowest: ## Test all version, with the lowest version
 
 test-matrix: ## Run the unit tests against multiple targets.
 	${MAKE} PHP_VER="7.4" build-update test
+	${MAKE} PHP_VER="8.0" build-update test
+	${MAKE} PHP_VER="8.1" build-update test
+	${MAKE} PHP_VER="8.2" build-update test
+	${MAKE} PHP_VER="8.3" build-update test
+	${MAKE} PHP_VER="8.4" build-update test
+	${MAKE} PHP_VER="8.5" build-update test
 
 test-coverage: ## Run all tests and output coverage to the console.
 	${DOCKER_RUN} phpdbg7 -qrr vendor/bin/phpunit --coverage-text