diff --git a/CMakeLists.txt b/CMakeLists.txt
index 75f5795db68..890969f6724 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -889,8 +889,8 @@ if(WITH_PYTHON)
   # Do this before main 'platform_*' checks,
   # because UNIX will search for the old Python paths which may not exist.
   # giving errors about missing paths before this case is met.
-  if(DEFINED PYTHON_VERSION AND "${PYTHON_VERSION}" VERSION_LESS "3.9")
-    message(FATAL_ERROR "At least Python 3.9 is required to build, but found Python ${PYTHON_VERSION}")
+  if(DEFINED PYTHON_VERSION AND "${PYTHON_VERSION}" VERSION_LESS "3.10")
+    message(FATAL_ERROR "At least Python 3.10 is required to build, but found Python ${PYTHON_VERSION}")
   endif()
 
   file(GLOB RESULT "${CMAKE_SOURCE_DIR}/release/scripts/addons")
diff --git a/build_files/build_environment/install_deps.sh b/build_files/build_environment/install_deps.sh
index 3d0f6cacb56..41c6fa495d8 100755
--- a/build_files/build_environment/install_deps.sh
+++ b/build_files/build_environment/install_deps.sh
@@ -366,7 +366,7 @@ CLANG_FORMAT_VERSION_MEX="14.0"
 
 PYTHON_VERSION="3.10.2"
 PYTHON_VERSION_SHORT="3.10"
-PYTHON_VERSION_MIN="3.9"
+PYTHON_VERSION_MIN="3.10"
 PYTHON_VERSION_MEX="3.12"
 PYTHON_VERSION_INSTALLED=$PYTHON_VERSION_SHORT
 PYTHON_FORCE_BUILD=false
diff --git a/source/blender/python/intern/bpy_capi_utils.h b/source/blender/python/intern/bpy_capi_utils.h
index 4a2e5fdebb7..223c6ad5f7e 100644
--- a/source/blender/python/intern/bpy_capi_utils.h
+++ b/source/blender/python/intern/bpy_capi_utils.h
@@ -6,8 +6,8 @@
 
 #pragma once
 
-#if PY_VERSION_HEX < 0x03090000
-#  error "Python 3.9 or greater is required, you'll need to update your Python."
+#if PY_VERSION_HEX < 0x030a0000
+#  error "Python 3.10 or greater is required, you'll need to update your Python."
 #endif
 
 #ifdef __cplusplus
diff --git a/source/blender/python/mathutils/mathutils.c b/source/blender/python/mathutils/mathutils.c
index 89fb89cfd41..8ed156a7e55 100644
--- a/source/blender/python/mathutils/mathutils.c
+++ b/source/blender/python/mathutils/mathutils.c
@@ -76,11 +76,7 @@ Py_hash_t mathutils_array_hash(const float *array, size_t array_len)
   x = 0x345678UL;
   i = 0;
   while (--len >= 0) {
-#if PY_VERSION_HEX >= 0x30a0000 /* Version: 3.10. */
     y = _Py_HashDouble(NULL, (double)(array[i++]));
-#else
-    y = _Py_HashDouble((double)(array[i++]));
-#endif
     if (y == -1) {
       return -1;
     }