diff --git a/opentelemetry-api/src/opentelemetry/util/types.py b/opentelemetry-api/src/opentelemetry/util/types.py
index 28fab893890..5ce93d84b25 100644
--- a/opentelemetry-api/src/opentelemetry/util/types.py
+++ b/opentelemetry-api/src/opentelemetry/util/types.py
@@ -13,7 +13,16 @@
 # limitations under the License.
 
 
-import typing
+from typing import Dict, Optional, Sequence, Union
 
-AttributeValue = typing.Union[str, bool, float]
-Attributes = typing.Optional[typing.Dict[str, AttributeValue]]
+AttributeValue = Union[
+    str,
+    bool,
+    int,
+    float,
+    Sequence[str],
+    Sequence[bool],
+    Sequence[int],
+    Sequence[float],
+]
+Attributes = Optional[Dict[str, AttributeValue]]