diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 910ed2004..2daa261cb 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.15.5)
+cmake_minimum_required(VERSION 3.13.4)
 
 option(EGL "Set to ON if targeting an EGL device" ${EGL})
 option(PANDORA "Set to ON if targeting an OpenPandora" ${PANDORA})
diff --git a/src/GLideNHQ/CMakeLists.txt b/src/GLideNHQ/CMakeLists.txt
index b75920f8e..af10c9d72 100644
--- a/src/GLideNHQ/CMakeLists.txt
+++ b/src/GLideNHQ/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.15.5)
+cmake_minimum_required(VERSION 3.13.4)
 
 project( GLideNHQ )
 
diff --git a/src/osal/CMakeLists.txt b/src/osal/CMakeLists.txt
index c5d883233..12c7ebabc 100644
--- a/src/osal/CMakeLists.txt
+++ b/src/osal/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.15.5)
+cmake_minimum_required(VERSION 3.13.4)
 project( osal )
 
 add_library(osal STATIC)