diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e133ca5..2c105feb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+## v0.9.1 (2026-05-21)
+
 ## v0.9.0 (2026-05-15)
 
 ## v0.8.0 (2026-05-14)
diff --git a/pyproject.toml b/pyproject.toml
index 820bd5a6..1af925bd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "hackagent"
-version = "0.9.0"
+version = "0.9.1"
 description = "HackAgent is an open-source security toolkit to detect vulnerabilities of your AI Agents."
 authors = [
     {name = "AI Security Lab", email = "ais@ai4i.it"}
diff --git a/uv.lock b/uv.lock
index 6d55e9a3..2744e7af 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2368,7 +2368,7 @@ wheels = [
 
 [[package]]
 name = "hackagent"
-version = "0.8.0"
+version = "0.9.0"
 source = { editable = "." }
 dependencies = [
     { name = "click" },