diff --git a/composer.lock b/composer.lock
index d0521f1..99efaa9 100644
--- a/composer.lock
+++ b/composer.lock
@@ -245,11 +245,11 @@
         },
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+            "version": "2.1.54",
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@@ -294,20 +294,20 @@
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                 }
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-            "time": "2026-01-30T17:12:46+00:00"
+            "time": "2026-04-29T13:31:09+00:00"
         },
         {
             "name": "phpstan/phpstan-phpunit",
-            "version": "2.0.12",
+            "version": "2.0.16",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan-phpunit.git",
-                "reference": "e4c5a22bf43d3d2bd5a780ad261a622ff62c49a4"
+                "reference": "6ab598e1bc106e6827fd346ae4a12b4a5d634c32"
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-                "url": "https://api.github.com/repos/phpstan/phpstan-phpunit/zipball/e4c5a22bf43d3d2bd5a780ad261a622ff62c49a4",
-                "reference": "e4c5a22bf43d3d2bd5a780ad261a622ff62c49a4",
+                "url": "https://api.github.com/repos/phpstan/phpstan-phpunit/zipball/6ab598e1bc106e6827fd346ae4a12b4a5d634c32",
+                "reference": "6ab598e1bc106e6827fd346ae4a12b4a5d634c32",
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             "require": {
@@ -343,29 +343,32 @@
                 "MIT"
             ],
             "description": "PHPUnit extensions and rules for PHPStan",
+            "keywords": [
+                "static analysis"
+            ],
             "support": {
                 "issues": "https://github.com/phpstan/phpstan-phpunit/issues",
-                "source": "https://github.com/phpstan/phpstan-phpunit/tree/2.0.12"
+                "source": "https://github.com/phpstan/phpstan-phpunit/tree/2.0.16"
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-            "time": "2026-01-22T13:40:00+00:00"
+            "time": "2026-02-14T09:05:21+00:00"
         },
         {
             "name": "phpstan/phpstan-strict-rules",
-            "version": "2.0.8",
+            "version": "2.0.11",
             "source": {
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                 "url": "https://github.com/phpstan/phpstan-strict-rules.git",
-                "reference": "1ed9e626a37f7067b594422411539aa807190573"
+                "reference": "9b000a578b85b32945b358b172c7b20e91189024"
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-                "reference": "1ed9e626a37f7067b594422411539aa807190573",
+                "url": "https://api.github.com/repos/phpstan/phpstan-strict-rules/zipball/9b000a578b85b32945b358b172c7b20e91189024",
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                 "php": "^7.4 || ^8.0",
-                "phpstan/phpstan": "^2.1.29"
+                "phpstan/phpstan": "^2.1.39"
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@@ -391,11 +394,14 @@
                 "MIT"
             ],
             "description": "Extra strict and opinionated rules for PHPStan",
+            "keywords": [
+                "static analysis"
+            ],
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                 "issues": "https://github.com/phpstan/phpstan-strict-rules/issues",
-                "source": "https://github.com/phpstan/phpstan-strict-rules/tree/2.0.8"
+                "source": "https://github.com/phpstan/phpstan-strict-rules/tree/2.0.11"
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-            "time": "2026-01-27T08:10:25+00:00"
+            "time": "2026-05-02T06:54:10+00:00"
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@@ -744,16 +750,16 @@
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-            "version": "12.5.22",
+            "version": "12.5.24",
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                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "e07667405f0f43317a1799d3907c43a123bc5587"
+                "reference": "d75dd30597caa80e72fad2ef7904601a30ef1046"
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-                "reference": "e07667405f0f43317a1799d3907c43a123bc5587",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/d75dd30597caa80e72fad2ef7904601a30ef1046",
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@@ -822,7 +828,7 @@
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                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/12.5.22"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/12.5.24"
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@@ -830,25 +836,25 @@
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-            "time": "2026-04-17T12:51:04+00:00"
+            "time": "2026-05-01T04:21:04+00:00"
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-            "version": "2.3.5",
+            "version": "2.4.2",
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                 "url": "https://github.com/rectorphp/rector.git",
-                "reference": "9442f4037de6a5347ae157fe8e6c7cda9d909070"
+                "reference": "e645b6463c6a88ea5b44b17d3387d35a912c7946"
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-                "reference": "9442f4037de6a5347ae157fe8e6c7cda9d909070",
+                "url": "https://api.github.com/repos/rectorphp/rector/zipball/e645b6463c6a88ea5b44b17d3387d35a912c7946",
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+                "phpstan/phpstan": "^2.1.48"
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@@ -882,7 +888,7 @@
             ],
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-                "source": "https://github.com/rectorphp/rector/tree/2.3.5"
+                "source": "https://github.com/rectorphp/rector/tree/2.4.2"
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@@ -890,7 +896,7 @@
                     "type": "github"
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-            "time": "2026-01-28T15:22:48+00:00"
+            "time": "2026-04-16T13:07:34+00:00"
         },
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             "name": "sebastian/cli-parser",
@@ -1791,16 +1797,16 @@
         },
         {
             "name": "spaze/phpstan-disallowed-calls",
-            "version": "v4.7.1",
+            "version": "v4.12.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/spaze/phpstan-disallowed-calls.git",
-                "reference": "4be6274bc23a2c44817690feda3ae4189496c246"
+                "reference": "5b69dc08f420b39e6c351f1cbd8e02a682c0ebdf"
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-                "reference": "4be6274bc23a2c44817690feda3ae4189496c246",
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@@ -1812,8 +1818,8 @@
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-                "phpunit/phpunit": "^8.5.14 || ^10.1 || ^11.0 || ^12.0",
-                "shipmonk/dead-code-detector": "^0.14.1",
+                "phpunit/phpunit": "^8.5.14 || ^10.1 || ^11.0 || ^12.0 || ^13.0",
+                "shipmonk/dead-code-detector": "^0.15.0",
                 "spaze/coding-standard": "^1.8"
             },
             "type": "phpstan-extension",
@@ -1840,13 +1846,13 @@
                     "homepage": "https://www.michalspacek.cz"
                 }
             ],
-            "description": "PHPStan rules to detect disallowed method & function calls, constant, namespace, attribute & superglobal usages, with powerful rules to re-allow a call or a usage in places where it should be allowed.",
+            "description": "PHPStan rules to detect disallowed method & function calls, constant, namespace, attribute, property & superglobal usages, with powerful rules to re-allow a call or a usage in places where it should be allowed.",
             "keywords": [
                 "static analysis"
             ],
             "support": {
                 "issues": "https://github.com/spaze/phpstan-disallowed-calls/issues",
-                "source": "https://github.com/spaze/phpstan-disallowed-calls/tree/v4.7.1"
+                "source": "https://github.com/spaze/phpstan-disallowed-calls/tree/v4.12.0"
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@@ -1854,7 +1860,7 @@
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-            "time": "2026-01-31T03:50:05+00:00"
+            "time": "2026-04-28T05:25:38+00:00"
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@@ -1910,25 +1916,25 @@
         },
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+            "version": "13.1.3",
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-                "reference": "5c7e7a07e5d6a98b9dd2e6fc0a9155efb7c166c8"
+                "url": "https://github.com/easy-coding-standard/ecs.git",
+                "reference": "d894d088d7ebb9326f9eed28bf251481c813b89f"
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-                "reference": "5c7e7a07e5d6a98b9dd2e6fc0a9155efb7c166c8",
+                "url": "https://api.github.com/repos/easy-coding-standard/ecs/zipball/d894d088d7ebb9326f9eed28bf251481c813b89f",
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                 "php": ">=7.2"
             },
             "conflict": {
-                "friendsofphp/php-cs-fixer": "<3.92.4",
+                "friendsofphp/php-cs-fixer": "<3.95.1",
                 "phpcsstandards/php_codesniffer": "<4.0.1",
-                "symplify/coding-standard": "<12.1"
+                "symplify/coding-standard": "<13.0"
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                 "ext-dom": "Needed to support checkstyle output format in class CheckstyleOutputFormatter"
@@ -1954,20 +1960,9 @@
                 "static analysis"
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-                "issues": "https://github.com/easy-coding-standard/easy-coding-standard/issues",
-                "source": "https://github.com/easy-coding-standard/easy-coding-standard/tree/13.0.4"
+                "source": "https://github.com/easy-coding-standard/ecs/tree/13.1.3"
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-            "funding": [
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-                    "type": "custom"
-                },
-                {
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-                    "type": "github"
-                }
-            ],
-            "time": "2026-01-05T09:10:04+00:00"
+            "time": "2026-05-04T21:45:57+00:00"
         },
         {
             "name": "theseer/tokenizer",
diff --git a/src/SIE/Data/Transaction.php b/src/SIE/Data/Transaction.php
index 2660531..17830c8 100644
--- a/src/SIE/Data/Transaction.php
+++ b/src/SIE/Data/Transaction.php
@@ -111,7 +111,7 @@ public function getObjects(): array
      */
     public function addObject(DimensionObject $object): self
     {
-        $dimensionId = $object->getDimension()?->getId();
+        $dimensionId = (int) $object->getDimension()?->getId();
         // check that we only add one object per dimension
         if (isset($this->dimensionObjects[$dimensionId])) {
             throw new DomainException('This dimension is already defined on this transaction');