diff --git a/buildscripts/kokoro/psm-dualstack.cfg b/buildscripts/kokoro/psm-dualstack.cfg
index 55c906bc4ec..a55d91a95b0 100644
--- a/buildscripts/kokoro/psm-dualstack.cfg
+++ b/buildscripts/kokoro/psm-dualstack.cfg
@@ -2,7 +2,7 @@
 
 # Location of the continuous shell script in repository.
 build_file: "grpc-java/buildscripts/kokoro/psm-interop-test-java.sh"
-timeout_mins: 120
+timeout_mins: 240
 
 action {
   define_artifacts {