diff --git a/prover/gextra_test.go b/prover/gextra_test.go
index 7b8a5e9..002fd87 100644
--- a/prover/gextra_test.go
+++ b/prover/gextra_test.go
@@ -11,7 +11,7 @@ import (
 )
 
 const (
-       N1 = 50000
+       N1 = 5000
        N2 = 5000
 )