diff --git a/README.md b/README.md
index e0ccf89..5da842e 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ executes TiDB push-down executors to improve performance.
 
 Currently we only have push-down-test to test the Coprocessor module. Push-down-test exists to
 make sure that execution results are consistent between TiDB and Coprocessor. It works by
-executeing test cases on  a standalone TiDB (with mocktikv) and on a TiDB cluster (with TiKV
+executeing test cases on  a standalone TiDB (with unistore, a mocked storage with coprocessors inside TiDB itself) and on a TiDB cluster (with TiKV
 Coprocessor) and comparing the two execution results.
 
 Currently TiKV Coprocessor supports two execution models, the non-vectorized, traditional model and
diff --git a/push-down-test/config/no_push_down/tidb.toml b/push-down-test/config/no_push_down/tidb.toml
index 76c199b..e933ef1 100644
--- a/push-down-test/config/no_push_down/tidb.toml
+++ b/push-down-test/config/no_push_down/tidb.toml
@@ -1,5 +1,5 @@
 port = 4005
-store = "mocktikv"
+store = "unistore"
 
 [status]
 report-status = false