diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index 467be92..b143308 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -1,5 +1,5 @@
 find_package(Boost COMPONENTS date_time filesystem system regex REQUIRED)
-find_package(Python 3 COMPONENTS Development REQUIRED)
+find_package(Python 3.6 COMPONENTS Development REQUIRED)
 
 file(GLOB_RECURSE headers "*.h")
 file(GLOB_RECURSE templates "*.txx")
diff --git a/src/python/CMakeLists.txt b/src/python/CMakeLists.txt
index 9a68cba..917a413 100644
--- a/src/python/CMakeLists.txt
+++ b/src/python/CMakeLists.txt
@@ -1,4 +1,4 @@
-find_package(Python 3 COMPONENTS Interpreter REQUIRED)
+find_package(Python 3.6 COMPONENTS Interpreter REQUIRED)
 
 execute_process(
     COMMAND ${Python_EXECUTABLE}
diff --git a/src/python/dicomifier/CMakeLists.txt b/src/python/dicomifier/CMakeLists.txt
index a6198fe..faf371d 100644
--- a/src/python/dicomifier/CMakeLists.txt
+++ b/src/python/dicomifier/CMakeLists.txt
@@ -6,7 +6,7 @@ if(NOT "${Odil_FOUND}")
     get_filename_component(Odil_INCLUDE_DIRS "${Odil_INCLUDE_DIRS}" DIRECTORY)
     find_library(Odil_LIBRARIES odil REQUIRED)
 endif()
-find_package(Python 3 COMPONENTS Interpreter Development NumPy REQUIRED)
+find_package(Python 3.6 COMPONENTS Interpreter Development NumPy REQUIRED)
 find_package(pybind11 2.0 REQUIRED)
 
 include_directories(${CMAKE_SOURCE_DIR}/src/lib ${PYTHON_INCLUDE_DIRS})