diff --git a/external/fetch_sources.py b/external/fetch_sources.py
index 3ed9947..98fdbce 100755
--- a/external/fetch_sources.py
+++ b/external/fetch_sources.py
@@ -263,7 +263,7 @@
 	GitRepo(
 		"https://github.com/KhronosGroup/glslang.git",
 		None,
-		"4efc6f1ed0d61c0cacf398b8216e572d5a5c770d",
+		"0bb930fc0fbe5258261e807ee875bb77258c1a86",
 		"glslang",
 		removeTags = ["master-tot"]),
 	GitRepo(
diff --git a/external/vulkancts/modules/vulkan/shaderexecutor/vktShaderBuiltinPrecisionTests.cpp b/external/vulkancts/modules/vulkan/shaderexecutor/vktShaderBuiltinPrecisionTests.cpp
index 9366664..05b33ec 100644
--- a/external/vulkancts/modules/vulkan/shaderexecutor/vktShaderBuiltinPrecisionTests.cpp
+++ b/external/vulkancts/modules/vulkan/shaderexecutor/vktShaderBuiltinPrecisionTests.cpp
@@ -6171,8 +6171,8 @@
 	for (vector<Symbol>::const_iterator symIter = m_spec.inputs.begin(); symIter != m_spec.inputs.end(); ++symIter)
 		inputs16Bit = inputs16Bit || glu::isDataTypeFloat16OrVec(symIter->varType.getBasicType());
 
-	if (inputs16Bit || m_spec.packFloat16Bit) //TODO GL_KHR_shader_explicit_arithmetic_types spirv/glsl tools need to be updated  [24.05.2018 A.Sarwa]
-		m_spec.globalDeclarations += "#extension GL_KHX_shader_explicit_arithmetic_types: require\n";
+	if (inputs16Bit || m_spec.packFloat16Bit)
+		m_spec.globalDeclarations += "#extension GL_EXT_shader_explicit_arithmetic_types: require\n";
 
 	m_spec.outputs.resize(outCount);