diff --git a/cmake/CPM.cmake b/cmake/CPM.cmake
index cc25ec2..9c27c51 100644
--- a/cmake/CPM.cmake
+++ b/cmake/CPM.cmake
@@ -2,8 +2,8 @@
 #
 # SPDX-FileCopyrightText: Copyright (c) 2019-2023 Lars Melchior and contributors
 
-set(CPM_DOWNLOAD_VERSION 0.38.7)
-set(CPM_HASH_SUM "83e5eb71b2bbb8b1f2ad38f1950287a057624e385c238f6087f94cdfc44af9c5")
+set(CPM_DOWNLOAD_VERSION 0.40.8)
+set(CPM_HASH_SUM "78ba32abdf798bc616bab7c73aac32a17bbd7b06ad9e26a6add69de8f3ae4791")
 
 if(CPM_SOURCE_CACHE)
   set(CPM_DOWNLOAD_LOCATION "${CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")