diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 19fc982e..c7d32cae 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -41,7 +41,7 @@ jobs:
       run: sudo apt install libboost-all-dev libboost-python-dev
 
     - name: Install CPython headers
-      run: sudo apt install python3-dev libpython3-dev libpython3.9-dev
+      run: sudo apt install python3-dev libpython3-dev
 
     - name: Configure CMake
       # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.