diff --git a/pyproject.toml b/pyproject.toml
index 503fc60..8fa863d 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,8 +9,7 @@ documentation = "https://github.com/TAF-Verification/aeromet-py/blob/main/doc/do
 repository = "https://github.com/TAF-Verification/aeromet-py"
 
 [tool.poetry.dependencies]
-python = "^3.7"
-typing-extensions = "^4.2.0"
+python = "^3.8"
 
 [tool.poetry.group.dev.dependencies]
 coverage = "^6.4.4"