diff --git a/known_good.json b/known_good.json
index 1f108db8..ba9d9625 100644
--- a/known_good.json
+++ b/known_good.json
@@ -5,14 +5,14 @@
       "site" : "github",
       "subrepo" : "KhronosGroup/SPIRV-Tools",
       "subdir" : "External/spirv-tools",
-      "commit" : "dd3d91691f1e1dc4c0f42818756cf5e165c8918c"
+      "commit" : "5a97e3a391677ff9baae8ccdf5c03c4d403d848b"
     },
     {
       "name" : "spirv-tools/external/spirv-headers",
       "site" : "github",
       "subrepo" : "KhronosGroup/SPIRV-Headers",
       "subdir" : "External/spirv-tools/external/spirv-headers",
-      "commit" : "204cd131c42b90d129073719f2766293ce35c081"
+      "commit" : "f8bf11a0253a32375c32cad92c841237b96696c0"
     }
   ]
 }