diff --git a/CMakeLists.txt b/CMakeLists.txt
index acaad7c08c..1730d88653 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -793,7 +793,7 @@ unset(LYX_PYTHON_EXECUTABLE CACHE)
 unset(PYTHON_VERSION_MAJOR)
 unset(PYTHON_VERSION_MINOR)
 unset(PYTHON_VERSION_STRING)
-find_package(PythonInterp 3.3 QUIET)
+find_package(PythonInterp 3.5 QUIET)
 if(NOT PYTHONINTERP_FOUND)
   unset(PYTHON_EXECUTABLE CACHE)
   find_package(PythonInterp 2.0 REQUIRED)