diff --git a/systest/Cargo.toml b/systest/Cargo.toml
index ef159270..3997bf35 100644
--- a/systest/Cargo.toml
+++ b/systest/Cargo.toml
@@ -9,4 +9,4 @@ libc = "0.2"
 openssl-sys = { path = "../openssl-sys" }
 
 [build-dependencies]
-ctest = "=0.1.4"
+ctest = "0.1"