diff --git a/numalogic/config/_config.py b/numalogic/config/_config.py
index 67f37eb9..a37469e7 100644
--- a/numalogic/config/_config.py
+++ b/numalogic/config/_config.py
@@ -157,7 +157,7 @@ class NumalogicConf:
     trainer: TrainerConf = field(default_factory=TrainerConf)
     preprocess: list[ModelInfo] = field(default_factory=list)
     threshold: ModelInfo = field(default_factory=lambda: ModelInfo(name="StdDevThreshold"))
-    postprocess: ModelInfo = field(
+    postprocess: Optional[ModelInfo] = field(
         default_factory=lambda: ModelInfo(name="TanhNorm", stateful=False)
     )
     score: ScoreConf = field(default_factory=lambda: ScoreConf())
diff --git a/numalogic/udfs/postprocess.py b/numalogic/udfs/postprocess.py
index a8342a76..f891efa9 100644
--- a/numalogic/udfs/postprocess.py
+++ b/numalogic/udfs/postprocess.py
@@ -122,7 +122,11 @@ def exec(self, keys: list[str], datum: Datum) -> Messages:
             load_latest=LOAD_LATEST,
             vertex=self._vtx,
         )
-        postproc_tx = self.postproc_factory.get_instance(postprocess_cfg)
+        postproc_tx = (
+            self.postproc_factory.get_instance(postprocess_cfg) if postprocess_cfg else None
+        )
+        if not postproc_tx:
+            logger.info("Postprocess model is absent!")
 
         if thresh_artifact is None:
             payload = replace(
diff --git a/pyproject.toml b/pyproject.toml
index 82af7bec..58978327 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "numalogic"
-version = "0.9.1a8"
+version = "0.9.1a9"
 description = "Collection of operational Machine Learning models and tools."
 authors = ["Numalogic Developers"]
 packages = [{ include = "numalogic" }]
diff --git a/tests/connectors/test_druid.py b/tests/connectors/test_druid.py
index 74311f0d..471a4a78 100644
--- a/tests/connectors/test_druid.py
+++ b/tests/connectors/test_druid.py
@@ -109,7 +109,7 @@ def group_by(*_, **__):
                     "env": "prod",
                     "status": 200,
                     "http_status": "2xx",
-                    "count": 20
+                    "count": 20,
                 },
                 "timestamp": "2023-09-06T07:50:00.000Z",
                 "version": "v1",
@@ -120,8 +120,7 @@ def group_by(*_, **__):
                     "env": "prod",
                     "status": 500,
                     "http_status": "5xx",
-                    "count": 10
-
+                    "count": 10,
                 },
                 "timestamp": "2023-09-06T07:53:00.000Z",
                 "version": "v1",
diff --git a/tests/udfs/test_postprocess.py b/tests/udfs/test_postprocess.py
index e6979f12..e0b5e853 100644
--- a/tests/udfs/test_postprocess.py
+++ b/tests/udfs/test_postprocess.py
@@ -14,6 +14,7 @@
 from numalogic._constants import TESTS_DIR
 from numalogic.models.threshold import StdDevThreshold
 from numalogic.registry import RedisRegistry, ArtifactData
+from numalogic.transforms import TanhNorm
 from numalogic.udfs import PipelineConf
 from numalogic.udfs.entities import Header, TrainerPayload, Status, OutputPayload
 from numalogic.udfs.postprocess import PostprocessUDF
@@ -172,7 +173,15 @@ def test_postprocess_runtime_err_02(udf, mocker, bad_artifact):
     assert msgs[1].tags == ["staticthresh"]
 
 
-def test_compute(udf, artifact):
+def test_compute_without_postproc(udf, artifact):
     y_unified, x_inferred = udf.compute(artifact.artifact, np.asarray(DATA["data"]))
     assert isinstance(y_unified, float)
     assert x_inferred.shape == (2,)
+
+
+def test_compute_with_postproc(udf, artifact):
+    y_unified, x_inferred = udf.compute(
+        artifact.artifact, np.asarray(DATA["data"]), postproc_tx=TanhNorm()
+    )
+    assert isinstance(y_unified, float)
+    assert x_inferred.shape == (2,)