diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 51b6fda..f5df067 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -8,7 +8,7 @@ schedules:
     always: true
 jobs:
   - job: swiftshader
-    timeoutInMinutes: 180
+    timeoutInMinutes: 360
     pool:
       vmImage: windows-latest
     strategy:
@@ -24,7 +24,7 @@ jobs:
           git clone --depth=1 https://swiftshader.googlesource.com/SwiftShader swiftshader
           git clone https://github.com/pal1000/swiftshader-dist-win.git swiftshader-dist-win
           cd swiftshader-dist-win
-          git checkout 1.0.7.3
+          git checkout 1.0.7.4
           cd ..
         displayName: Get sources
       - script: swiftshader-dist-win\buildscript\ci\ci.cmd collectuids
diff --git a/buildscript/ci/x64-llvm10.cmd b/buildscript/ci/x64-llvm10.cmd
index 74aa551..8738547 100644
--- a/buildscript/ci/x64-llvm10.cmd
+++ b/buildscript/ci/x64-llvm10.cmd
@@ -16,7 +16,8 @@
 @set pyupd=y
 
 @rem modules\throttle.cmd
-@set throttle=%NUMBER_OF_PROCESSORS%
+@rem Throtte LLVM10 backend build to 1 CPU to avoid heap exhaustion
+@set throttle=1
 
 @rem modules\swiftshader.cmd
 @set buildswiftshader=y
diff --git a/buildscript/ci/x86-llvm10.cmd b/buildscript/ci/x86-llvm10.cmd
index 8cc8f8f..e055df3 100644
--- a/buildscript/ci/x86-llvm10.cmd
+++ b/buildscript/ci/x86-llvm10.cmd
@@ -16,7 +16,8 @@
 @set pyupd=n
 
 @rem modules\throttle.cmd
-@set throttle=%NUMBER_OF_PROCESSORS%
+@rem Throtte LLVM10 backend build to 1 CPU to avoid heap exhaustion
+@set throttle=1
 
 @rem modules\swiftshader.cmd
 @set buildswiftshader=y