diff --git a/Cargo.toml b/Cargo.toml
index b37afa4..e46532a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,11 +9,11 @@ env_logger = "0.4.3"
 error-chain = "0.10.0"
 log = "0.3.8"
 rand = "0.3.16"
-ring = "0.13.0-alpha"
+ring = "0.9.7"
 rust-crypto = "0.2.36"
 serde = "1.0.9"
 serde_derive = "1.0.9"
-untrusted = "0.6"
+untrusted = "0.5.1"
 
 [dependencies.ruma-identifiers]
 branch = "synapse-workarounds"