diff --git a/src/Symfony/Contracts/Cache/composer.json b/src/Symfony/Contracts/Cache/composer.json
index a8783d1be4..ce40614881 100644
--- a/src/Symfony/Contracts/Cache/composer.json
+++ b/src/Symfony/Contracts/Cache/composer.json
@@ -33,6 +33,9 @@
         }
     },
     "extra": {
-        "branch-version": "1.1"
+        "branch-version": "1.1",
+        "branch-alias": {
+            "dev-main": "1.1-dev"
+        }
     }
 }
diff --git a/src/Symfony/Contracts/EventDispatcher/composer.json b/src/Symfony/Contracts/EventDispatcher/composer.json
index 83799d9af5..35258e78b7 100644
--- a/src/Symfony/Contracts/EventDispatcher/composer.json
+++ b/src/Symfony/Contracts/EventDispatcher/composer.json
@@ -33,6 +33,9 @@
         }
     },
     "extra": {
-        "branch-version": "1.1"
+        "branch-version": "1.1",
+        "branch-alias": {
+            "dev-main": "1.1-dev"
+        }
     }
 }
diff --git a/src/Symfony/Contracts/HttpClient/composer.json b/src/Symfony/Contracts/HttpClient/composer.json
index 0d69861346..f4bcfb2a36 100644
--- a/src/Symfony/Contracts/HttpClient/composer.json
+++ b/src/Symfony/Contracts/HttpClient/composer.json
@@ -32,6 +32,9 @@
         }
     },
     "extra": {
-        "branch-version": "1.1"
+        "branch-version": "1.1",
+        "branch-alias": {
+            "dev-main": "1.1-dev"
+        }
     }
 }
diff --git a/src/Symfony/Contracts/Service/composer.json b/src/Symfony/Contracts/Service/composer.json
index 19eac7434c..4f24e1e03d 100644
--- a/src/Symfony/Contracts/Service/composer.json
+++ b/src/Symfony/Contracts/Service/composer.json
@@ -33,6 +33,9 @@
         }
     },
     "extra": {
-        "branch-version": "1.1"
+        "branch-version": "1.1",
+        "branch-alias": {
+            "dev-main": "1.1-dev"
+        }
     }
 }
diff --git a/src/Symfony/Contracts/Translation/composer.json b/src/Symfony/Contracts/Translation/composer.json
index 50e74ce3c2..2b4ddbb386 100644
--- a/src/Symfony/Contracts/Translation/composer.json
+++ b/src/Symfony/Contracts/Translation/composer.json
@@ -32,6 +32,9 @@
         }
     },
     "extra": {
-        "branch-version": "1.1"
+        "branch-version": "1.1",
+        "branch-alias": {
+            "dev-main": "1.1-dev"
+        }
     }
 }
diff --git a/src/Symfony/Contracts/composer.json b/src/Symfony/Contracts/composer.json
index 9da4d9e71c..ec475e2670 100644
--- a/src/Symfony/Contracts/composer.json
+++ b/src/Symfony/Contracts/composer.json
@@ -46,6 +46,9 @@
     },
     "minimum-stability": "dev",
     "extra": {
-        "branch-version": "1.1"
+        "branch-version": "1.1",
+        "branch-alias": {
+            "dev-main": "1.1-dev"
+        }
     }
 }