diff --git a/pkgs/development/compilers/glslang/default.nix b/pkgs/development/compilers/glslang/default.nix
index 20e156a72e4..151f42a7aa7 100644
--- a/pkgs/development/compilers/glslang/default.nix
+++ b/pkgs/development/compilers/glslang/default.nix
@@ -2,15 +2,15 @@
 
 stdenv.mkDerivation rec {
   name = "glslang-git-${version}";
-  version = "2017-03-29";
+  version = "2017-08-31";
 
   # `vulkan-loader` requires a specific version of `glslang` as specified in
   # `<vulkan-loader-repo>/external_revisions/glslang_revision`.
   src = fetchFromGitHub {
     owner = "KhronosGroup";
     repo = "glslang";
-    rev = "714e58b2fc5a45714596e6aa2f6ac8f64260365c";
-    sha256 = "0ihnd0c4mr6ppbv9g7z1abrn8vx66simfzx5q48nqcpnywn35jxv";
+    rev = "3a21c880500eac21cdf79bef5b80f970a55ac6af";
+    sha256 = "1i15m17r0acmzjrkybris2rgw15il05a4w5h7vhhsiyngcvajcyn";
   };
 
   buildInputs = [ cmake bison ];
diff --git a/pkgs/development/libraries/vulkan-loader/default.nix b/pkgs/development/libraries/vulkan-loader/default.nix
index 8330f7f44f3..5110dd1db64 100644
--- a/pkgs/development/libraries/vulkan-loader/default.nix
+++ b/pkgs/development/libraries/vulkan-loader/default.nix
@@ -3,12 +3,12 @@
   libXext, wayland, mesa_noglu, makeWrapper }:
 
 let
-  version = "1.0.42.2";
+  version = "1.0.61.1";
   src = fetchFromGitHub {
     owner = "KhronosGroup";
     repo = "Vulkan-LoaderAndValidationLayers";
     rev = "sdk-${version}";
-    sha256 = "0na1ax2cgv6w29213mby56mndfsj3iizj3n5pbpy4s4p7ij9kdgn";
+    sha256 = "043kw6wnrpdplnb40x6n9rgf3gygsn9jiv91y458sydbhalfr945";
   };
 in
 
@@ -48,11 +48,12 @@ stdenv.mkDerivation rec {
     sed -i "s:\\./lib:$out/lib/lib:g" "$out/share/vulkan/"*/*.json
     mkdir -p $dev/include
     cp -rv ../include $dev/
+    mkdir -p $demos/share/vulkan-demos
+    cp demos/*.spv demos/*.ppm $demos/share/vulkan-demos
     mkdir -p $demos/bin
-    cp demos/*.spv demos/*.ppm $demos/bin
-    find demos -type f -executable -not -name vulkaninfo -exec cp {} $demos/bin \;
+    find demos -type f -executable -not -name vulkaninfo -exec cp -v {} $demos/bin \;
     for p in cube cubepp; do
-      wrapProgram $demos/bin/$p --run "cd $demos/bin"
+      wrapProgram $demos/bin/$p --run "cd $demos/share/vulkan-demos"
     done
   '';
 
diff --git a/pkgs/development/tools/spirv-tools/default.nix b/pkgs/development/tools/spirv-tools/default.nix
index bfd4b7370e0..fc6bf1921e2 100644
--- a/pkgs/development/tools/spirv-tools/default.nix
+++ b/pkgs/development/tools/spirv-tools/default.nix
@@ -8,14 +8,14 @@ spirv_sources = {
   tools = fetchFromGitHub {
     owner = "KhronosGroup";
     repo = "SPIRV-Tools";
-    rev = "7fe8a57a5bd72094e91f9f93e51dac2f2461dcb4";
-    sha256 = "0rh25y1k3m3f1nqs032lh3mng5qfw9kqn6xv9yzzm47i1i0b6hmr";
+    rev = "7e2d26c77b606b21af839b37fd21381c4a669f23";
+    sha256 = "1nlzj081v1xdyfz30nfs8hfcnqd072fra127h46gav179f04kss2";
   };
   headers = fetchFromGitHub {
     owner = "KhronosGroup";
     repo = "SPIRV-Headers";
-    rev = "6c08995e6e7b94129e6086c78198c77111f2f262";
-    sha256 = "07m12wm9prib7hldj7pbc8vwnj0x6llgx4shzgy8x4xbhbafawws";
+    rev = "2bb92e6fe2c6aa410152fc6c63443f452acb1a65";
+    sha256 = "1rgjd7kpa7xpbwpzd6m3f6yq44s9xn5ddhz135213pxwbi5c0c26";
   };
 };
 
@@ -23,7 +23,7 @@ in
 
 stdenv.mkDerivation rec {
   name = "spirv-tools-${version}";
-  version = "2017-03-23";
+  version = "2017-09-01";
 
   src = spirv_sources.tools;
   patchPhase = ''ln -sv ${spirv_sources.headers} external/spirv-headers'';