diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
index 9a27f7bcc5..ec60e5241c 100644
--- a/external/CMakeLists.txt
+++ b/external/CMakeLists.txt
@@ -98,6 +98,11 @@ if(SLANG_ENABLE_SLANG_RHI)
     set(SLANG_RHI_SLANG_BINARY_DIR ${CMAKE_BINARY_DIR})
     set(SLANG_RHI_BUILD_TESTS OFF)
     set(SLANG_RHI_BUILD_EXAMPLES OFF)
+
+    # Not disabling these break tests (issue #5474)
+    set(SLANG_RHI_FETCH_DXC OFF)
+    set(SLANG_RHI_FETCH_AGILITY_SDK OFF)
+
     if(SLANG_ENABLE_DX_ON_VK)
         set(SLANG_RHI_HAS_D3D12 ON)
     endif()
diff --git a/external/slang-rhi b/external/slang-rhi
index ebc2b53ee9..180464b57e 160000
--- a/external/slang-rhi
+++ b/external/slang-rhi
@@ -1 +1 @@
-Subproject commit ebc2b53ee9a06b73e26fa7ca6d2ee30fcf53b6d7
+Subproject commit 180464b57e7806a741ff84cc83fd5f11b8a2ae9d