diff --git a/CHANGELOG.md b/CHANGELOG.md
index 570227d53..203a53357 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,10 +4,17 @@ All notable changes to this project will be documented in this file.
 
 ## Unreleased
 
+## [0.91.0] - 2025-11-24
+
+### Added
+
+- Add audit MCP tools.
+
 ### Fixed
 
 - Fix 5xx when create vendor snapshot.
 - Fix compliance page http to https redirect.
+- Fix cannot create continious improvment via MCP.
 
 ## [0.90.1] - 2025-11-23
 
diff --git a/GNUmakefile b/GNUmakefile
index 0a8e7756a..3536600a2 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -14,7 +14,7 @@ DOCKER_BUILD=	DOCKER_BUILDKIT=1 $(DOCKER) build $(DOCKER_BUILD_FLAGS)
 
 DOCKER_COMPOSE=	$(DOCKER) compose -f compose.yaml $(DOCKER_COMPOSE_FLAGS)
 
-VERSION=	0.90.1
+VERSION=	0.91.0
 LDFLAGS=	-ldflags "-X 'main.version=$(VERSION)' -X 'main.env=prod'"
 GCFLAGS=	-gcflags="-e"