--- a/Cargo.toml
+++ b/Cargo.toml
@@ -97,10 +97,10 @@
 optional = true
 
 [dependencies.hashlink]
-version = "0.10"
+version = "0.8"
 
 [dev-dependencies.libtest-mimic]
-version = "0.8"
+version = "0.7"
 
 [dev-dependencies.quickcheck]
 version = "1.0"