diff --git a/regression-test/suites/query_p0/sql_functions/cast_function/test_cast_string_to_array.groovy b/regression-test/suites/query_p0/sql_functions/cast_function/test_cast_string_to_array.groovy
index b246fb553439c07..28112ed8e0f750a 100644
--- a/regression-test/suites/query_p0/sql_functions/cast_function/test_cast_string_to_array.groovy
+++ b/regression-test/suites/query_p0/sql_functions/cast_function/test_cast_string_to_array.groovy
@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-suite("test_cast_string_to_array") {
+suite("test_cast_string_to_array", "nonConcurrent") {
     // cast string to array<int>
     qt_sql """ select cast ("[1,2,3]" as array<int>) """
 
diff --git a/regression-test/suites/query_p0/sql_functions/cast_function/test_cast_to_datetime.groovy b/regression-test/suites/query_p0/sql_functions/cast_function/test_cast_to_datetime.groovy
index 0dc3c9f19f8d87f..9437dc6eb7aae7e 100644
--- a/regression-test/suites/query_p0/sql_functions/cast_function/test_cast_to_datetime.groovy
+++ b/regression-test/suites/query_p0/sql_functions/cast_function/test_cast_to_datetime.groovy
@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-suite("test_cast_to_datetime") {
+suite("test_cast_to_datetime", "nonConcurrent") {
     // cast string of invalid datetime to datetime
     qt_cast_string_to_datetime_invalid0 """ select cast("627492340" as datetime); """
     qt_cast_string_to_datetime_invalid1 """ select cast("" as datetime); """