diff --git a/docs/converter/rector.md b/docs/converter/rector.md
index add565c..66d0738 100644
--- a/docs/converter/rector.md
+++ b/docs/converter/rector.md
@@ -21,7 +21,7 @@
 ## Requirements
 
 * [Rector][rector] requires PHP version 7.2.0 or greater, with `phpstan` 1.11 or greater
-* This SARIF converter requires at least Rector version 1.0
+* This SARIF converter requires at least Rector version 1.2.3
 
 ## Installation
 
diff --git a/vendor-bin/rector/composer.json b/vendor-bin/rector/composer.json
index 1ad5f5e..a836a0c 100644
--- a/vendor-bin/rector/composer.json
+++ b/vendor-bin/rector/composer.json
@@ -1,6 +1,6 @@
 {
     "require-dev": {
-        "rector/rector": "^1.0"
+        "rector/rector": "^1.2.3"
     },
     "config": {
         "allow-plugins": {