Update submodule url
diff --git a/.gitmodules b/.gitmodules
index db39e02..04b4e37 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "verilog/rtl/vga-clock"]
 	path = verilog/rtl/vga-clock
-	url = https://github.com/mattvenn/vga-clock
+	url = https://github.com/russellfriesenhahn/vga-clock