diff --git a/externals/catch b/externals/catch
index d2a130f2433aeaca070e3e4d6298a80049d21cfc..15cf3caaceb21172ea42a24e595a2eb58c3ec960 160000
--- a/externals/catch
+++ b/externals/catch
@@ -1 +1 @@
-Subproject commit d2a130f2433aeaca070e3e4d6298a80049d21cfc
+Subproject commit 15cf3caaceb21172ea42a24e595a2eb58c3ec960
diff --git a/src/tests/common/param_package.cpp b/src/tests/common/param_package.cpp
index 19d372236c204d76700099a1911196bf9c96d4c3..4c0f9654f49f50ba98b89ac3f699690c45abe040 100644
--- a/src/tests/common/param_package.cpp
+++ b/src/tests/common/param_package.cpp
@@ -2,7 +2,7 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 #include <math.h>
 #include "common/param_package.h"
 
diff --git a/src/tests/core/core_timing.cpp b/src/tests/core/core_timing.cpp
index fcaa30990cc3885b95c6860007b20987f0fbead4..2242c14cf205101e80b96795965671dc39cdec1e 100644
--- a/src/tests/core/core_timing.cpp
+++ b/src/tests/core/core_timing.cpp
@@ -2,7 +2,7 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 
 #include <array>
 #include <bitset>
diff --git a/src/tests/glad.cpp b/src/tests/glad.cpp
index b0b01644003261c26745f78c6a0ff703c6a02a31..1797c0e3d1485f79e52b3e1ae01831e994c39474 100644
--- a/src/tests/glad.cpp
+++ b/src/tests/glad.cpp
@@ -2,7 +2,7 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 #include <glad/glad.h>
 
 // This is not an actual test, but a work-around for issue #2183.
diff --git a/src/tests/tests.cpp b/src/tests/tests.cpp
index 73978676f143927995be79e15cc9ab756308a187..275b430d94aed28913badc48cce349347f8149ef 100644
--- a/src/tests/tests.cpp
+++ b/src/tests/tests.cpp
@@ -3,7 +3,7 @@
 // Refer to the license.txt file included.
 
 #define CATCH_CONFIG_MAIN
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 
 // Catch provides the main function since we've given it the
 // CATCH_CONFIG_MAIN preprocessor directive.