diff --git a/CHANGELOG.md b/CHANGELOG.md
index f040e8b..bdf096c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## 2.0.1 - UPCOMING
 
 * Add support for PHP 8.6
+* Require `guzzlehttp/guzzle` ^8.1, `guzzlehttp/promises` ^3.0.2, and `guzzlehttp/psr7` ^3.1
 
 ## 2.0.0 - 2026-07-20
 
diff --git a/composer.json b/composer.json
index 1d3abad..10ecef7 100644
--- a/composer.json
+++ b/composer.json
@@ -26,9 +26,9 @@
     ],
     "require": {
         "php": "^7.4 || ^8.0",
-        "guzzlehttp/guzzle": "^8.0",
-        "guzzlehttp/promises": "^3.0",
-        "guzzlehttp/psr7": "^3.0",
+        "guzzlehttp/guzzle": "^8.1",
+        "guzzlehttp/promises": "^3.0.2",
+        "guzzlehttp/psr7": "^3.1",
         "psr/http-client": "^1.0",
         "symfony/polyfill-php80": "^1.25",
         "symfony/polyfill-php82": "^1.27"