--- a/httpsig/__init__.py
+++ b/httpsig/__init__.py
@@ -1,11 +1,11 @@
-from pkg_resources import get_distribution, DistributionNotFound
+from importlib.metadata import PackageNotFoundError, version
 
 from .sign import Signer, HeaderSigner
 from .verify import Verifier, HeaderVerifier
 
 try:
-    __version__ = get_distribution(__name__).version
-except DistributionNotFound:
+    __version__ = version(__name__)
+except PackageNotFoundError:
     # package is not installed
     pass