diff --git a/CMakeLists.txt b/CMakeLists.txt
index d7e55bd..a536623 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,7 +20,7 @@ find_cppkg(magic_enum 0.9.5  MODULE magic_enum::magic_enum TYPE lib)
 find_cppkg(nameof 0.10.3  MODULE nameof::nameof TYPE lib)
 find_cppkg(nlohmann_json 3.11.3  MODULE nlohmann_json::nlohmann_json TYPE lib OPTIONAL OFF)
 find_cppkg(toml11 3.7.1  MODULE toml11::toml11 TYPE lib OPTIONAL OFF)
-find_cppkg(yaml-cpp 0.8.0  MODULE yaml-cpp TYPE lib OPTIONAL OFF)
+find_cppkg(yaml-cpp 0.6.3  MODULE yaml-cpp TYPE lib OPTIONAL OFF)
 
 
 cppm_target_define(serdepp STATIC
diff --git a/cppm.toml b/cppm.toml
index 4c927db..736dfcf 100644
--- a/cppm.toml
+++ b/cppm.toml
@@ -93,7 +93,7 @@ source = ["tests/.*"]
     nameof = { version="0.10.3", link="public"}
     magic_enum = { version= "0.9.5", link="public"}
     fmt = {version="10.2.0", link="public", optional=true}
-    yaml-cpp   = { version="0.8.0",  link="public", optional=true}
+    yaml-cpp   = { version="0.6.3",  link="public", optional=true}
     toml11     = { version="3.7.1",  link="public", optional=true}
     nlohmann_json = { version="3.11.3", link="public", optional=true}
     RapidJSON = { version="1.1.1", link="public", optional=true}
diff --git a/thirdparty/yaml-cpp/0.6.3/yaml-cpp.cmake.in b/thirdparty/yaml-cpp/0.6.3/yaml-cpp.cmake.in
index 4aab0de..35946fd 100644
--- a/thirdparty/yaml-cpp/0.6.3/yaml-cpp.cmake.in
+++ b/thirdparty/yaml-cpp/0.6.3/yaml-cpp.cmake.in
@@ -2,7 +2,7 @@
 cmake_minimum_required(VERSION 3.6)
 project(yaml-cpp-0.6.3-install)
 
-set(CPPM_VERSION 0.0.13)
+set(CPPM_VERSION ${CPPM_VERSION})
 include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/cppm_loader.cmake)
 download_package(yaml-cpp 0.6.3  URL https://github.com/jbeder/yaml-cpp/archive/yaml-cpp-0.6.3.tar.gz  TYPE lib CMAKE_ARGS ${CMAKE_ARGS} -DYAML_CPP_BUILD_TESTS=OFF)