diff --git a/glslang.spec b/glslang.spec
index 730f3c4..20cf77a 100644
--- a/glslang.spec
+++ b/glslang.spec
@@ -1,11 +1,11 @@
-%global commit 715c353a15836e5ae192a64a4cf54e2ce7e8d66a
+%global commit 2651ccaec8170b3257642b3c438f50dc4f181fdd
 %global shortcommit %(c=%{commit}; echo ${c:0:7})
-%global commit_date 20171028
+%global commit_date 20180205
 %global gitrel .%{commit_date}.git%{shortcommit}
 
 Name:           glslang
 Version:        3.1
-Release:        0.5%{?gitrel}%{?dist}
+Release:        0.6%{?gitrel}%{?dist}
 Summary:        OpenGL and OpenGL ES shader front end and validator
 
 License:        BSD and GPLv3+ and ASL 2.0
@@ -78,6 +78,9 @@ install -pm 0644 build/StandAlone/libglslang-default-resource-limits.a %{buildro
 %{_libdir}/libglslang-default-resource-limits.a
 
 %changelog
+* Fri Feb 09 2018 Leigh Scott <leigh123linux@googlemail.com> - 3.1-0.6.20180205.git2651cca
+- Update for vulkan 1.0.68.0
+
 * Fri Feb 09 2018 Leigh Scott <leigh123linux@googlemail.com> - 3.1-0.5.20171028.git715c353
 - Use ninja to build
 
diff --git a/sources b/sources
index 5cff0f4..34f782d 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glslang-715c353a15836e5ae192a64a4cf54e2ce7e8d66a.tar.gz) = 9c46249cf2addb31833fcf3b1ce47458b8d339f86e6a5896ed8511d8b8e48dfcf65d2e4b7291593d47161f1c23a82e5f42fc2bbcf33e2383e9b0bd951f092924
+SHA512 (glslang-2651ccaec8170b3257642b3c438f50dc4f181fdd.tar.gz) = 51f3da28351018d3904fbeb4c0320180240f24ac03417386e993298906f4cdf5671373eebf15d0bb66364e92366f37ecb70ec9b328673eb74845bcb64c510dca