diff --git a/.travis.yml b/.travis.yml
index 172b520..7d05484 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,3 @@
-sudo: false
-
 cache:
   directories:
     - $HOME/.composer/cache/files
@@ -16,15 +14,18 @@ matrix:
   include:
     - php: 7.1
       env: COMPOSER_OPTIONS="--prefer-lowest --prefer-stable"
-    - php: 7.1
-      env: SYMFONY_VERSION="3.4.x"
     - php: 7.2
+    - php: 7.2
+      env: SYMFONY_REQUIRE="4.4.*"
     - php: 7.3
-      env: COVERAGE=yes COMPOSER_OPTIONS="" SYMFONY_PHPUNIT_VERSION=7.5
+      env: COVERAGE=yes SYMFONY_PHPUNIT_VERSION=7.5
+    - php: 7.4
+    - php: 8.0snapshot
+      env: COMPOSER_OPTIONS=""
 
 before_install:
   - if [ "$COVERAGE" != "yes" ]; then phpenv config-rm xdebug.ini; fi
-  - if [ "$SYMFONY_VERSION" != "" ]; then composer require --dev --no-update symfony/symfony:"$SYMFONY_VERSION"; fi
+  - composer global require --no-progress --no-scripts --no-plugins symfony/flex
 
 install:
   - composer update $COMPOSER_OPTIONS
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 189b8c0..742a519 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 CHANGELOG
 =========
 
+1.5.0
+-----
+
+* added support for Symfony 5.1+
+* dropped support for Symfony <4.4
+* added support for PHP 8
+
 1.4.0
 -----
 
diff --git a/composer.json b/composer.json
index d2d2dba..b811f98 100644
--- a/composer.json
+++ b/composer.json
@@ -12,19 +12,19 @@
         }
     ],
     "require": {
-        "php": "^7.1",
+        "php": "^7.1|^8.0",
         "php-http/client-implementation": "^1.0",
         "php-http/discovery": "^1.2.1",
         "php-http/httplug": "^1.1 || ^2.0",
         "php-http/message": "^1.5",
-        "symfony/http-foundation": "~3.4|~4.3",
-        "symfony/serializer": "~3.4|~4.3"
+        "symfony/http-foundation": "^4.4|^5.1",
+        "symfony/serializer": "^4.4|^5.1"
     },
     "require-dev": {
         "guzzle/guzzle": "~3.7",
         "guzzlehttp/psr7": "^1.4",
         "php-http/mock-client": "^1.0",
-        "symfony/phpunit-bridge": "^3.4.19 || ^4.1.8"
+        "symfony/phpunit-bridge": "^5.1"
     },
     "minimum-stability": "dev",
     "autoload": {
@@ -39,7 +39,7 @@
     },
     "extra": {
         "branch-alias": {
-            "1.x-dev": "1.4.x-dev"
+            "1.x-dev": "1.5.x-dev"
         }
     }
 }