diff --git a/sample/.gitlinks b/sample/.gitlinks
index 8160db2..62e3830 100644
--- a/sample/.gitlinks
+++ b/sample/.gitlinks
@@ -5,7 +5,7 @@ CppLogging CppLogging https://github.com/chronoxor/CppLogging.git master
 
 # Modules
 Catch2 modules/Catch2 https://github.com/catchorg/Catch2.git devel
-cpp-optparse modules/cpp-optparse https://github.com/weisslj/cpp-optparse.git master
+cpp-optparse modules/cpp-optparse https://github.com/weisslj/cpp-optparse.git main
 fmt modules/fmt https://github.com/fmtlib/fmt.git master
 HdrHistogram modules/HdrHistogram https://github.com/HdrHistogram/HdrHistogram_c.git main
 zlib modules/zlib https://github.com/madler/zlib.git master