diff --git a/src/vizdoom/dumb/CMakeLists.txt b/src/vizdoom/dumb/CMakeLists.txt
index 957cb29d1..ad939f193 100644
--- a/src/vizdoom/dumb/CMakeLists.txt
+++ b/src/vizdoom/dumb/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required( VERSION 3.15 )
+cmake_minimum_required( VERSION 3.4 )
 
 make_release_only()
 
diff --git a/src/vizdoom/zlib/CMakeLists.txt b/src/vizdoom/zlib/CMakeLists.txt
index 43795934d..3543b82e4 100644
--- a/src/vizdoom/zlib/CMakeLists.txt
+++ b/src/vizdoom/zlib/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.4.4)
+cmake_minimum_required(VERSION 3.4)
 set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
 
 make_release_only()