diff --git a/Makefile b/Makefile
index d5fa7b2..20b3d5a 100644
--- a/Makefile
+++ b/Makefile
@@ -115,7 +115,7 @@
 
 ### OPEN_PDKS
 $(PDK_ROOT)/open_pdks:
-	git clone git://opencircuitdesign.com/open_pdks $(PDK_ROOT)/open_pdks
+	git clone https://github.com/RTimothyEdwards/open_pdks.git $(PDK_ROOT)/open_pdks
 
 .PHONY: open_pdks
 open_pdks: check-env $(PDK_ROOT)/open_pdks