diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..869334f
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,41 @@
+name: "Continuous Integration"
+
+on:
+  - push
+  - pull_request
+
+env:
+  COMPOSER_FLAGS: "--no-interaction --prefer-dist"
+
+jobs:
+  tests:
+    name: "CI"
+    
+    runs-on: ubuntu-latest
+    
+    strategy:
+      matrix:
+        php-version:
+          - "7.2"
+          - "7.3"
+          - "7.4"
+          - "8.0"
+        
+        dependencies: [highest]
+    
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+    
+      - name: "Setup PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          php-version: "${{ matrix.php-version }}"
+    
+      - name: "Install dependencies"
+        run: |
+          composer update ${{ env.COMPOSER_FLAGS }}
+    
+      - name: "Run tests"
+        run: "composer exec phpunit -- --verbose"
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index fb7f94c..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,11 +0,0 @@
-language: php
-php:
-  - 7.0
-  - 7.1
-  - 7.2
-  - 7.3
-  - 7.4
-
-before_script: composer install --no-interaction --prefer-source
-script:
-  - vendor/bin/phpunit --coverage-text --verbose
diff --git a/composer.json b/composer.json
index dffb9cb..9ff9b8e 100644
--- a/composer.json
+++ b/composer.json
@@ -13,11 +13,11 @@
 		}
 	],
 	"require": {
-		"psr/log": "1.*",
-		"php": ">=5.3.2"
+		"psr/log": "^1.0.1",
+		"php": ">=7.2"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "^4.8.36 || ^5.7 || ^6.5"
+		"phpunit/phpunit": "^8.5"
 	},
 	"autoload": {
 		"psr-0": {