diff --git a/composer.json b/composer.json
index d3e7173..411c89f 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
         "composer-plugin-api": "^1.1|^2.0"
     },
     "require-dev": {
-        "composer/composer": "~2.1.9 || ~2.3.0 || ~2.5.0",
+        "composer/composer": "~2.1.9 || ~2.3.0 || ~2.5.0 || ~2.6.0",
         "ergebnis/composer-normalize": "^2.0.2",
         "ergebnis/phpstan-rules": "^0.14.2|^0.15.0",
         "mikey179/vfsstream": "^1.6.8",