diff --git a/requirements-iris.txt b/requirements-iris.txt
index d4363d8..9867a94 100644
--- a/requirements-iris.txt
+++ b/requirements-iris.txt
@@ -1 +1 @@
-https://github.com/intersystems-community/intersystems-irispython/releases/download/3.7.7/intersystems_iris-3.7.7-py3-none-any.whl
\ No newline at end of file
+https://github.com/intersystems-community/intersystems-irispython/releases/download/3.7.8/intersystems_iris-3.7.8-py3-none-any.whl
\ No newline at end of file
diff --git a/sqlalchemy_iris/base.py b/sqlalchemy_iris/base.py
index 6ec259f..729aafc 100644
--- a/sqlalchemy_iris/base.py
+++ b/sqlalchemy_iris/base.py
@@ -105,8 +105,8 @@ def check_constraints(cls):
     "LONGVARCHAR": LONGVARCHAR,
     "NUMERIC": NUMERIC,
     "SMALLINT": SMALLINT,
-    "TIME": TIME,
-    "TIMESTAMP": TIMESTAMP,
+    "TIME": IRISTime,
+    "TIMESTAMP": IRISTimeStamp,
     "TINYINT": TINYINT,
     "VARBINARY": VARBINARY,
     "VARCHAR": VARCHAR,
@@ -925,8 +925,8 @@ def on_connect(conn):
                 cursor.execute("%CHECKPRIV SELECT ON %Dictionary.PropertyDefinition")
                 self._dictionary_access = cursor.sqlcode == 0
 
-            if not self.supports_vectors:
-                util.warn("No native support for VECTOR or not activated by license")
+            # if not self.supports_vectors:
+            #     util.warn("No native support for VECTOR or not activated by license")
             if not self._dictionary_access:
                 util.warn(
                     """
diff --git a/sqlalchemy_iris/types.py b/sqlalchemy_iris/types.py
index d77a373..bee12ad 100644
--- a/sqlalchemy_iris/types.py
+++ b/sqlalchemy_iris/types.py
@@ -58,6 +58,8 @@ def process(value):
 
 
 class IRISTimeStamp(sqltypes.DateTime):
+    __visit_name__ = "timestamp"
+
     def bind_processor(self, dialect):
         def process(value: datetime.datetime):
             if value is not None:
@@ -84,6 +86,8 @@ def process(value):
 
 
 class IRISDateTime(sqltypes.DateTime):
+    __visit_name__ = "datetime"
+
     def bind_processor(self, dialect):
         def process(value):
             if value is not None:
@@ -106,6 +110,8 @@ def process(value):
 
 
 class IRISTime(sqltypes.DateTime):
+    __visit_name__ = "time"
+
     def bind_processor(self, dialect):
         def process(value):
             if value is not None: