diff --git a/CHANGELOG.md b/CHANGELOG.md
index e2a176b62..3738603cf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,10 +8,14 @@ and this project adheres to
 
 ## [Unreleased]
 
+## [3.1.0] - 2025-04-07
+
 ## Added
 
 - 🚩(backend) add feature flag for the footer #841
 - 🔧(backend) add view to manage footer json #841
+- ✨(frontend) add custom css style #771
+- 🚩(frontend) conditionally render AI button only when feature is enabled #814
 
 ## Changed
 
@@ -27,7 +31,6 @@ and this project adheres to
 ## Added
 
 - 📄(legal) Require contributors to sign a DCO #779
-- ✨(frontend) add custom css style #771
 
 ## Changed
 
@@ -36,7 +39,6 @@ and this project adheres to
 
 ## Fixed
 
-- 🐛(frontend) conditionally render AI button only when feature is enabled #814
 - 🐛(backend) compute ancestor_links in get_abilities if needed #725
 - 🔒️(back) restrict access to document accesses #801
 
@@ -522,7 +524,8 @@ and this project adheres to
 - ✨(frontend) Coming Soon page (#67)
 - 🚀 Impress, project to manage your documents easily and collaboratively.
 
-[unreleased]: https://github.com/numerique-gouv/impress/compare/v3.0.0...main
+[unreleased]: https://github.com/numerique-gouv/impress/compare/v3.1.0...main
+[v3.1.0]: https://github.com/numerique-gouv/impress/releases/v3.1.0
 [v3.0.0]: https://github.com/numerique-gouv/impress/releases/v3.0.0
 [v2.6.0]: https://github.com/numerique-gouv/impress/releases/v2.6.0
 [v2.5.0]: https://github.com/numerique-gouv/impress/releases/v2.5.0
diff --git a/src/backend/pyproject.toml b/src/backend/pyproject.toml
index 64fd74489..010dba65e 100644
--- a/src/backend/pyproject.toml
+++ b/src/backend/pyproject.toml
@@ -7,7 +7,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "impress"
-version = "3.0.0"
+version = "3.1.0"
 authors = [{ "name" = "DINUM", "email" = "dev@mail.numerique.gouv.fr" }]
 classifiers = [
     "Development Status :: 5 - Production/Stable",
diff --git a/src/frontend/apps/e2e/package.json b/src/frontend/apps/e2e/package.json
index 75f4fa760..4e43b620d 100644
--- a/src/frontend/apps/e2e/package.json
+++ b/src/frontend/apps/e2e/package.json
@@ -1,6 +1,6 @@
 {
   "name": "app-e2e",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "private": true,
   "scripts": {
     "lint": "eslint . --ext .ts",
diff --git a/src/frontend/apps/impress/package.json b/src/frontend/apps/impress/package.json
index 1b0aa46d0..6fac8b44b 100644
--- a/src/frontend/apps/impress/package.json
+++ b/src/frontend/apps/impress/package.json
@@ -1,6 +1,6 @@
 {
   "name": "app-impress",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "private": true,
   "scripts": {
     "dev": "next dev",
diff --git a/src/frontend/package.json b/src/frontend/package.json
index 26e66a603..8621c7b9f 100644
--- a/src/frontend/package.json
+++ b/src/frontend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "impress",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "private": true,
   "workspaces": {
     "packages": [
diff --git a/src/frontend/packages/eslint-config-impress/package.json b/src/frontend/packages/eslint-config-impress/package.json
index 573a193f3..ac95f7159 100644
--- a/src/frontend/packages/eslint-config-impress/package.json
+++ b/src/frontend/packages/eslint-config-impress/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eslint-config-impress",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "license": "MIT",
   "scripts": {
     "lint": "eslint --ext .js ."
diff --git a/src/frontend/packages/i18n/package.json b/src/frontend/packages/i18n/package.json
index 804baf914..917acff8c 100644
--- a/src/frontend/packages/i18n/package.json
+++ b/src/frontend/packages/i18n/package.json
@@ -1,6 +1,6 @@
 {
   "name": "packages-i18n",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "private": true,
   "scripts": {
     "extract-translation": "yarn extract-translation:impress",
diff --git a/src/frontend/servers/y-provider/package.json b/src/frontend/servers/y-provider/package.json
index 24295450b..e5acea45d 100644
--- a/src/frontend/servers/y-provider/package.json
+++ b/src/frontend/servers/y-provider/package.json
@@ -1,6 +1,6 @@
 {
   "name": "server-y-provider",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "description": "Y.js provider for docs",
   "repository": "https://github.com/numerique-gouv/impress",
   "license": "MIT",
diff --git a/src/helm/helmfile.yaml b/src/helm/helmfile.yaml
index 977ef5f3e..b0ace0ae8 100644
--- a/src/helm/helmfile.yaml
+++ b/src/helm/helmfile.yaml
@@ -1,7 +1,7 @@
 environments:
   dev:
     values:
-      - version: 3.0.0
+      - version: 3.1.0
 ---
 repositories:
 - name: bitnami
diff --git a/src/helm/impress/Chart.yaml b/src/helm/impress/Chart.yaml
index 280899192..691f6cb13 100644
--- a/src/helm/impress/Chart.yaml
+++ b/src/helm/impress/Chart.yaml
@@ -1,5 +1,5 @@
 apiVersion: v2
 type: application
 name: docs
-version: 3.0.0
+version: 3.1.0
 appVersion: latest
diff --git a/src/mail/package.json b/src/mail/package.json
index e85111b0a..8920f862e 100644
--- a/src/mail/package.json
+++ b/src/mail/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mail_mjml",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "description": "An util to generate html and text django's templates from mjml templates",
   "type": "module",
   "dependencies": {