diff --git a/.github/actions/setup-project/action.yml b/.github/actions/setup-project/action.yml
index 6a7d508a0..de142ed6c 100644
--- a/.github/actions/setup-project/action.yml
+++ b/.github/actions/setup-project/action.yml
@@ -9,10 +9,10 @@ runs:
         sudo apt-get update \
         && sudo apt-get install -y --no-install-recommends \
         libcurl4-openssl-dev
-    - name: Set up Python 3.12.2
+    - name: Set up Python 3.12.9
       uses: actions/setup-python@v4
       with:
-        python-version: "3.12.2"
+        python-version: "3.12.9"
     - name: Install poetry
       shell: bash
       run: pip install poetry==2.1.3
diff --git a/README.md b/README.md
index c8a2e44c5..b15c6c858 100644
--- a/README.md
+++ b/README.md
@@ -243,12 +243,12 @@ git clone git@github.com:GSA/notifications-admin.git
 
 Now go into the project directory (`notifications-admin` by default), create a
 virtual environment, and set the local Python version to point to the virtual
-environment (assumes version Python `3.12.2` is what is installed on your
+environment (assumes version Python `3.12.9` is what is installed on your
 machine):
 
 ```sh
 cd notifications-admin
-pyenv virtualenv 3.12.2 notify-admin
+pyenv virtualenv 3.12.9 notify-admin
 pyenv local notify-admin
 ```
 
@@ -299,7 +299,7 @@ environment with the newer version of Python you just installed:
 
 ```sh
 cd notifications-admin
-pyenv virtualenv 3.12.2 notify-admin
+pyenv virtualenv 3.12.9 notify-admin
 pyenv local notify-admin
 ```
 
diff --git a/poetry.lock b/poetry.lock
index 1abff05c7..d77c8d0f1 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.1.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.1.3 and should not be changed by hand.
 
 [[package]]
 name = "ago"
@@ -4128,5 +4128,5 @@ cffi = ["cffi (>=1.11)"]
 
 [metadata]
 lock-version = "2.1"
-python-versions = "^3.12.2"
-content-hash = "7e12a42bc3bd26f5611335c1bfd994feb1714b772aed6fbfb6f6b51eb0b8fcfd"
+python-versions = "^3.12.9"
+content-hash = "1581753a29750324e9991425b8f6648c74ed9f1e4423a3b1ead1413fe454a130"
diff --git a/pyproject.toml b/pyproject.toml
index a6f0c0801..1ad52042b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ package-mode = false
 
 [tool.poetry.dependencies]
 axe-core-python = "^0.1.0"
-python = "^3.12.2"
+python = "^3.12.9"
 ago = "~=0.1.0"
 beautifulsoup4 = "^4.13.3"
 blinker = "~=1.8"