diff --git a/requirements.txt b/requirements.txt
index 754eeced..ca6f1b07 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 pyasn1>=0.4.6
 pycryptodomex
-winkerberos
\ No newline at end of file
+winkerberos; platform_system=='Windows'
+gssapi; platform_system!='Windows'