diff --git a/autogen/agentchat/contrib/vectordb/chromadb.py b/autogen/agentchat/contrib/vectordb/chromadb.py
index 7411b4efa4..c6e082fc22 100644
--- a/autogen/agentchat/contrib/vectordb/chromadb.py
+++ b/autogen/agentchat/contrib/vectordb/chromadb.py
@@ -15,6 +15,7 @@
 
     if chromadb.__version__ < "0.4.15":
         raise ImportError("Please upgrade chromadb to version 0.4.15 or later.")
+    import chromadb.errors
     import chromadb.utils.embedding_functions as ef
     from chromadb.api.models.Collection import Collection
 except ImportError:
@@ -90,7 +91,7 @@ def create_collection(
                 collection = self.active_collection
             else:
                 collection = self.client.get_collection(collection_name, embedding_function=self.embedding_function)
-        except ValueError:
+        except (ValueError, chromadb.errors.ChromaError):
             collection = None
         if collection is None:
             return self.client.create_collection(
diff --git a/test/agentchat/contrib/vectordb/test_chromadb.py b/test/agentchat/contrib/vectordb/test_chromadb.py
index 7b7992f717..6966269136 100644
--- a/test/agentchat/contrib/vectordb/test_chromadb.py
+++ b/test/agentchat/contrib/vectordb/test_chromadb.py
@@ -13,6 +13,7 @@
 
 try:
     import chromadb
+    import chromadb.errors
     import sentence_transformers
 
     from autogen.agentchat.contrib.vectordb.chromadb import ChromaVectorDB
@@ -32,12 +33,18 @@ def test_chromadb():
 
     # test_delete_collection
     db.delete_collection(collection_name)
-    pytest.raises(ValueError, db.get_collection, collection_name)
+    pytest.raises((ValueError, chromadb.errors.ChromaError), db.get_collection, collection_name)
 
     # test more create collection
     collection = db.create_collection(collection_name, overwrite=False, get_or_create=False)
     assert collection.name == collection_name
-    pytest.raises(ValueError, db.create_collection, collection_name, overwrite=False, get_or_create=False)
+    pytest.raises(
+        (ValueError, chromadb.errors.ChromaError),
+        db.create_collection,
+        collection_name,
+        overwrite=False,
+        get_or_create=False,
+    )
     collection = db.create_collection(collection_name, overwrite=True, get_or_create=False)
     assert collection.name == collection_name
     collection = db.create_collection(collection_name, overwrite=False, get_or_create=True)