diff --git a/test/fast/prover/prover-pow-1-cluster.ts b/test/fast/prover/prover-pow-1-cluster.ts
index da63563cc5003612d28ba12f729bb10556307752..ea00618c0ebb3e204810328e60656546d16fef45 100644
--- a/test/fast/prover/prover-pow-1-cluster.ts
+++ b/test/fast/prover/prover-pow-1-cluster.ts
@@ -62,7 +62,7 @@ describe('PoW Cluster', () => {
     master.nbWorkers.should.above(0)
   })
 
-  it('should answer within 50ms for a basic PoW (warm)', async () => {
+  it('should answer within 100ms for a basic PoW (warm)', async () => {
     const start = Date.now()
     await master.proveByWorkers({
       newPoW: {
@@ -85,7 +85,7 @@ describe('PoW Cluster', () => {
       }
     })
     const delay = Date.now() - start
-    delay.should.be.below(50)
+    delay.should.be.below(100)
   })
 
   it('should be able to stop all the cores on cancel', async () => {