diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 25f3c2d..7f0ac54 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,7 +16,6 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "7.1"
           - "7.2"
           - "7.3"
           - "7.4"
@@ -39,7 +38,7 @@ jobs:
         run: "composer install --no-interaction --no-progress --no-suggest"
 
       - name: "Downgrade PHPUnit"
-        if: matrix.php-version == '7.1' || matrix.php-version == '7.2' || matrix.php-version == '7.3'
+        if: matrix.php-version == '7.2' || matrix.php-version == '7.3'
         run: "composer require --dev phpunit/phpunit:^7.5.20 --update-with-dependencies"
 
       - name: "Lint"
@@ -80,7 +79,6 @@ jobs:
       fail-fast: false
       matrix:
         php-version:
-          - "7.1"
           - "7.2"
           - "7.3"
           - "7.4"
@@ -108,7 +106,7 @@ jobs:
         run: "composer update --no-interaction --no-progress --no-suggest"
 
       - name: "Downgrade PHPUnit"
-        if: matrix.php-version == '7.1' || matrix.php-version == '7.2' || matrix.php-version == '7.3'
+        if: matrix.php-version == '7.2' || matrix.php-version == '7.3'
         run: "composer require --dev phpunit/phpunit:^7.5.20 --update-with-dependencies"
 
       - name: "Tests"
@@ -122,7 +120,6 @@ jobs:
       fail-fast: false
       matrix:
         php-version:
-          - "7.1"
           - "7.2"
           - "7.3"
           - "7.4"
@@ -152,7 +149,7 @@ jobs:
         run: "composer update --no-interaction --no-progress --no-suggest"
 
       - name: "Downgrade PHPUnit"
-        if: matrix.php-version == '7.1' || matrix.php-version == '7.2' || matrix.php-version == '7.3'
+        if: matrix.php-version == '7.2' || matrix.php-version == '7.3'
         run: "composer require --dev phpunit/phpunit:^7.5.20 --update-with-dependencies"
 
       - name: "PHPStan"
diff --git a/composer.json b/composer.json
index abc1041..78a87ef 100644
--- a/composer.json
+++ b/composer.json
@@ -6,8 +6,8 @@
 		"MIT"
 	],
 	"require": {
-		"php": "^7.1 || ^8.0",
-		"phpstan/phpstan": "^1.0"
+		"php": "^7.2 || ^8.0",
+		"phpstan/phpstan": "^1.5.0"
 	},
 	"conflict": {
 		"dibi/dibi": "<3.0"