diff --git a/deepmerge/strategy/core.py b/deepmerge/strategy/core.py
index b91255d..b035f57 100644
--- a/deepmerge/strategy/core.py
+++ b/deepmerge/strategy/core.py
@@ -6,7 +6,7 @@
 if sys.version_info >= (3, 10):
     from typing import TypeAlias
 else:
-    from typing_extentions import TypeAlias
+    from typing_extensions import TypeAlias
 
 import deepmerge.merger
 from ..exception import StrategyNotFound, InvalidMerge