diff --git a/actions/create_unique_testpypi_version/requirements.txt b/actions/create_unique_testpypi_version/requirements.txt
index a837616..b0588e6 100644
--- a/actions/create_unique_testpypi_version/requirements.txt
+++ b/actions/create_unique_testpypi_version/requirements.txt
@@ -13,6 +13,6 @@ pypi-simple==1.6.1
 requests==2.32.3
 soupsieve==2.6
 tomli==2.2.1
-tomli-w==1.1.0
+tomli-w==1.2.0
 typing-extensions==4.12.2
 urllib3==2.3.0
diff --git a/pyproject.toml b/pyproject.toml
index 4a45238..e4d7cc1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ python = "~3.12"  # This needs to stay in sync with all CI workflows
 poetry-core = "1.9.1"
 pypi-simple = "1.6.1"
 tomli = "2.2.1"
-tomli-w = "1.1.0"
+tomli-w = "1.2.0"
 
 [tool.poetry.group.actions-find_unreleased_changelog_items.dependencies]