1 files changed, 7 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index e6c4a077..cf063c44 100644
--- a/setup.py
+++ b/setup.py
@@ -74,4 +74,11 @@ setup(
         "Programming Language :: Python :: 3.8",
     ],
     install_requires=["bcrypt>=3.1.3", "cryptography>=2.5", "pynacl>=1.0.1"],
+    extras_require={
+        "gssapi": [
+            "pyasn1>=0.1.7",
+            'gssapi>=1.4.1;platform_system!="Windows"',
+            'pywin32>=2.1.8;platform_system=="Windows"',
+        ]
+    },
 )