diff --git a/rockspecs/lua-zmq-threads-scm-0.rockspec b/rockspecs/lua-zmq-threads-scm-0.rockspec
index 53648a4..0ecdad2 100644
--- a/rockspecs/lua-zmq-threads-scm-0.rockspec
+++ b/rockspecs/lua-zmq-threads-scm-0.rockspec
@@ -9,8 +9,8 @@ description = {
 	license = "MIT/X11",
 }
 dependencies = {
-	"lua-zmq",
-	"lua-llthreads",
+	"lua-zmq = scm-1",
+	"lua-llthreads = scm-0",
 }
 build = {
 	type = "none",