diff --git a/tools/internal_ci/windows/grpc_basictests_python.cfg b/tools/internal_ci/windows/grpc_basictests_python.cfg
index b0f6f6772d3..c68e0ffb8a6 100644
--- a/tools/internal_ci/windows/grpc_basictests_python.cfg
+++ b/tools/internal_ci/windows/grpc_basictests_python.cfg
@@ -16,7 +16,7 @@
 
 # Location of the continuous shell script in repository.
 build_file: "grpc/tools/internal_ci/windows/grpc_run_tests_matrix.bat"
-timeout_mins: 60
+timeout_mins: 90
 action {
   define_artifacts {
     regex: "**/*sponge_log.*"