diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6dd003d8..2edb5518 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-vX.X.X - DD MMM YYYY
+v4.0.0 - Jan 17 2023
 --------------------
 
 Features:
diff --git a/pyproject.toml b/pyproject.toml
index 3a4365f8..189a0dd1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ maintainers = ["GoDaddy <oss@godaddy.com>"]
 name = "tartufo"
 readme = "README.md"
 repository = "https://github.com/godaddy/tartufo/"
-version = "3.3.1"
+version = "4.0.0"
 
 [tool.poetry.scripts]
 tartufo = "tartufo.cli:main"