diff --git a/pyartifactory/models/build.py b/pyartifactory/models/build.py
index 896cc2a..e09fdf1 100644
--- a/pyartifactory/models/build.py
+++ b/pyartifactory/models/build.py
@@ -54,7 +54,7 @@ class BuildRuns(BaseModel):
 class BuildArtifact(BaseModel):
     """Models artifactory build artifact."""
 
-    type: str
+    type: Optional[str] = None
     sha1: str
     sha256: str
     md5: str
diff --git a/pyproject.toml b/pyproject.toml
index 848cfcb..8b511e5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "PyArtifactory"
-version = "2.11.0"
+version = "2.11.1"
 description = "Typed interactions with the Jfrog Artifactory REST API"
 authors = [
     "Ananias CARVALHO <carvalhoananias@hotmail.com>",