diff --git a/requirements_for_osx.txt b/requirements_for_osx.txt
index 6270347..9050bce 100644
--- a/requirements_for_osx.txt
+++ b/requirements_for_osx.txt
@@ -1,2 +1,3 @@
 scapy
-pcapy
\ No newline at end of file
+pcapy
+pypcap
\ No newline at end of file