diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eba0d5f..9db65a8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
       matrix:
         operating-system: [ ubuntu-latest ]
         php-versions: [ '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4', '8.5' ]
-        psr-http-versions: [ '~1.0.0', '^1', '^2' ]
+        psr-http-versions: [ '^1.1', '^2' ]
         exclude:
           - php-versions: '7.3'
             psr-http-versions: '^2'
diff --git a/composer.json b/composer.json
index 51dcc3d..844c4eb 100644
--- a/composer.json
+++ b/composer.json
@@ -3,13 +3,13 @@
 	"description": "Utilities for working with Psr7 Http Messages",
 	"type": "library",
 	"require": {
-		"psr/http-message": "^1 || ^2",
+		"psr/http-message": "^1.1 || ^2.0",
 		"php": ">=7.3"
 	},
 	"require-dev": {
 		"phpunit/phpunit": "^9.6.19",
 		"php-mock/php-mock-phpunit": "^2.15",
-		"guzzlehttp/psr7": "^2.4",
+		"guzzlehttp/psr7": "^2.9",
 		"corpus/coding-standard": "^0.6.0",
 		"squizlabs/php_codesniffer": "^3.13",
 		"friendsofphp/php-cs-fixer": "^3.4",