diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 3b24dac..45b5b9e 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -5,7 +5,7 @@
 # Fetch catch.
 message(STATUS "Fetching catch")
 include(FetchContent)
-FetchContent_Declare(catch URL https://github.com/catchorg/Catch2/archive/v2.13.4.zip)
+FetchContent_Declare(catch URL https://github.com/catchorg/Catch2/archive/refs/tags/v2.13.9.zip)
 FetchContent_MakeAvailable(catch)
 
 set(tests