diff --git a/pyproject.toml b/pyproject.toml
index 1072806e8..569dccb38 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ version = "31.4.0"
 description = "Client library for the Google Ads API"
 readme = "./README.rst"
 requires-python = ">=3.9, <3.15"
-license = { file = "LICENSE" }
+license-expression = "Apache-2.0"
 authors = [
     {name = "Google LLC", email = "googleapis-packages@google.com"}
 ]
@@ -68,4 +68,4 @@ Repository = "https://github.com/googleads/google-ads-python"
 
 [tool.setuptools.packages.find]
 include=["google.ads.*", "examples.*"]
-exclude=["tests", "tests.*"]
\ No newline at end of file
+exclude=["tests", "tests.*"]