diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4bc3ef68..c67ba6aa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 <!-- towncrier release notes start -->
 
+## [1.0.0](https://github.com/Substra/substra/releases/tag/1.0.0) - 2024-10-14
+
+### Removed
+
+- Drop Python 3.9 support. ([#428](https://github.com/Substra/substra/pull/428))
+
+
 ## [0.54.0](https://github.com/Substra/substra/releases/tag/0.54.0) - 2024-09-12
 
 ### Added
diff --git a/changes/428.removed b/changes/428.removed
deleted file mode 100644
index 8a3d28ca..00000000
--- a/changes/428.removed
+++ /dev/null
@@ -1 +0,0 @@
-Drop Python 3.9 support.
diff --git a/pyproject.toml b/pyproject.toml
index 89f47c66..9b03155f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ dev = [
     "pytest",
     "pytest-cov",
     "pytest-mock",
-    "substratools~=0.22.0",
+    "substratools~=1.0.0",
     "black",
     "flake8",
     "isort",
diff --git a/substra/__version__.py b/substra/__version__.py
index 450ee122..5becc17c 100644
--- a/substra/__version__.py
+++ b/substra/__version__.py
@@ -1 +1 @@
-__version__ = "0.54.0"
+__version__ = "1.0.0"