diff --git a/e1000d/Cargo.toml b/e1000d/Cargo.toml
index ec8c45e1ab..dc0120893f 100644
--- a/e1000d/Cargo.toml
+++ b/e1000d/Cargo.toml
@@ -9,3 +9,7 @@ event = { path = "../../crates/event/" }
 io = { path = "../../crates/io/" }
 netutils = { path = "../../programs/netutils/" }
 redox_syscall = { path = "../../syscall/" }
+
+[replace]
+"libc:0.2.17" = { git = "https://github.com/rust-lang/libc.git" }
+"rand:0.3.14" = { git = "https://github.com/rust-lang-nursery/rand.git" }
diff --git a/rtl8168d/Cargo.toml b/rtl8168d/Cargo.toml
index e72a130458..dbc13b98d7 100644
--- a/rtl8168d/Cargo.toml
+++ b/rtl8168d/Cargo.toml
@@ -9,3 +9,7 @@ event = { path = "../../crates/event/" }
 io = { path = "../../crates/io/" }
 netutils = { path = "../../programs/netutils/" }
 redox_syscall = { path = "../../syscall/" }
+
+[replace]
+"libc:0.2.17" = { git = "https://github.com/rust-lang/libc.git" }
+"rand:0.3.14" = { git = "https://github.com/rust-lang-nursery/rand.git" }