diff --git a/.github/workflows/ci-ifcopenshell-python-pypi.yml b/.github/workflows/ci-ifcopenshell-python-pypi.yml
index 526aa09b64..7988a0bc6a 100644
--- a/.github/workflows/ci-ifcopenshell-python-pypi.yml
+++ b/.github/workflows/ci-ifcopenshell-python-pypi.yml
@@ -24,7 +24,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        pyver: [py39, py310, py311, py312, py313, py314]
+        pyver: [py310, py311, py312, py313, py314]
         config:
           - {
             name: "Windows 64bit",
diff --git a/.github/workflows/ci-ifcopenshell-python.yml b/.github/workflows/ci-ifcopenshell-python.yml
index 5d34335ada..fe99f4857b 100644
--- a/.github/workflows/ci-ifcopenshell-python.yml
+++ b/.github/workflows/ci-ifcopenshell-python.yml
@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        pyver: [py39, py310, py311, py312, py313, py314]
+        pyver: [py310, py311, py312, py313, py314]
         config:
           - {
             name: "Windows 64bit",
diff --git a/src/ifcopenshell-python/Makefile b/src/ifcopenshell-python/Makefile
index 90c503d145..11fa50887e 100644
--- a/src/ifcopenshell-python/Makefile
+++ b/src/ifcopenshell-python/Makefile
@@ -28,9 +28,6 @@ endif
 endif
 
 # TODO: we should simplify this at some point...
-ifeq ($(PYVERSION), py39)
-PYNUMBER:=39
-endif
 ifeq ($(PYVERSION), py310)
 PYNUMBER:=310
 endif
diff --git a/src/ifcopenshell-python/test/test_package.py b/src/ifcopenshell-python/test/test_package.py
index b251e081c7..c7ed42a26a 100644
--- a/src/ifcopenshell-python/test/test_package.py
+++ b/src/ifcopenshell-python/test/test_package.py
@@ -32,7 +32,7 @@ except:
 # - .github/workflows/ci-ifcopenshell-python.yml
 # - .github/workflows/ci-ifcopenshell-python-pypi.yml
 # - src/ifcopenshell-python/Makefile (PYVERSION check)
-SUPPORTED_PY_VERSIONS = ("39", "310", "311", "312", "313", "314")
+SUPPORTED_PY_VERSIONS = ("310", "311", "312", "313", "314")
 SUPPORTED_PLATFORMS = ("win64", "linux64", "macos64", "macosm164")
 
 WASM_SUPPORTED_PY_VERSIONS = ("313",)