diff --git a/requirements.txt b/requirements.txt
index 80812c7..f7f82b3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,5 +12,4 @@ pyspinel == 1.0.0a3
 intelhex ~= 2.2
 pyyaml ~= 4.2b1
 crcmod ~= 1.7
-antlib ~= 1.0b ; sys_platform == 'win32'
 libusb1 ~= 1.7