diff --git a/lib/dl_connector_clickhouse/dl_connector_clickhouse/formula/definitions/functions_array.py b/lib/dl_connector_clickhouse/dl_connector_clickhouse/formula/definitions/functions_array.py
index 1f39bae68..255554e84 100644
--- a/lib/dl_connector_clickhouse/dl_connector_clickhouse/formula/definitions/functions_array.py
+++ b/lib/dl_connector_clickhouse/dl_connector_clickhouse/formula/definitions/functions_array.py
@@ -148,7 +148,7 @@
     base.FuncFloatArrayFromFloatArray.for_dialect(D.CLICKHOUSE),
     base.FuncFloatArrayFromStringArray(
         variants=[
-            V(D.CLICKHOUSE, lambda array: sa.func.arrayMap(Lambda(lambda x: sa.func.toFloat64OrNull(x)), array)),
+            V(D.CLICKHOUSE, lambda array: sa.func.arrayMap(Lambda(lambda x: sa.func.toFloat64(x)), array)),
         ]
     ),
     # cast_arr_int
@@ -160,7 +160,7 @@
     ),
     base.FuncIntArrayFromStringArray(
         variants=[
-            V(D.CLICKHOUSE, lambda array: sa.func.arrayMap(Lambda(lambda x: sa.func.toInt64OrNull(x)), array)),
+            V(D.CLICKHOUSE, lambda array: sa.func.arrayMap(Lambda(lambda x: sa.func.toInt64(x)), array)),
         ]
     ),
     # cast_arr_str