diff --git a/CHANGELOG.md b/CHANGELOG.md
index 081d09f..631f1a5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 # Unreleased
 
+# 15.0.2
+
+- bump [@0dep/piso@1](https://www.npmjs.com/package/@0dep/piso)
+
 # 15.0.1
 
 - fix parallel join inbound triggers not behaving as expected if inbound flow is taken more than once, unfortunately only for synchronous tasks
diff --git a/eslint.config.js b/eslint.config.js
index ad54971..9e5528a 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -42,7 +42,6 @@ const rules = {
   'no-undef-init': 2,
   'no-undef': 2,
   'no-underscore-dangle': 0,
-  'no-unused-expressions': 2,
   'no-unused-vars': 2,
   'no-use-before-define': 0,
   'no-var': 2,
diff --git a/package.json b/package.json
index e761d12..6adbb33 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bpmn-elements",
-  "version": "15.0.1",
+  "version": "15.0.2",
   "description": "Executable workflow elements based on BPMN 2.0",
   "type": "module",
   "main": "./dist/index.js",
@@ -88,7 +88,7 @@
     "texample": "^0.0.5"
   },
   "dependencies": {
-    "@0dep/piso": "^0.1.3",
+    "@0dep/piso": "^1.0.0",
     "smqp": "^9.0.2"
   }
 }