diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index cec1775..4d7647d 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -19,7 +19,6 @@ tower-util = "0.1"
 hex = "0.3"
 protobuf = "2"
 byteorder = "1"
-rand = "0.5.6"
 json = "0.12.0"
 tiny-bip39 = "0.6.2"
 secp256k1 = "=0.15.0"
@@ -29,47 +28,46 @@ ring = "0.14.0"
 lazy_static = "1.2.0"
 tower-service = "0.2"
 tokio-rustls = "0.10.0-alpha.3"
+rustls = { version = "0.15.2", features = ["dangerous_configuration"] }
 webpki = "0.19.1"
 webpki-roots = "0.16.0"
 tower-h2 = { git = "https://github.com/tower-rs/tower-h2" }
 rust-embed = "5.1.0"
+rand = "0.7.2"
 
 [dependencies.bellman]
 git = "https://github.com/adityapk00/librustzcash.git"
-rev = "0743dadcd017b60a0ac7123d04f0d6e7ce1e8016"
+rev = "188537ea025fcb7fbdfc11266f307a084a5451e4"
 default-features = false
 features = ["groth16"]
 
 [dependencies.pairing]
 git = "https://github.com/adityapk00/librustzcash.git"
-rev = "0743dadcd017b60a0ac7123d04f0d6e7ce1e8016"
+rev = "188537ea025fcb7fbdfc11266f307a084a5451e4"
 
 [dependencies.zcash_client_backend]
 git = "https://github.com/adityapk00/librustzcash.git"
-rev = "0743dadcd017b60a0ac7123d04f0d6e7ce1e8016"
+rev = "188537ea025fcb7fbdfc11266f307a084a5451e4"
 default-features = false
 
 [dependencies.zcash_primitives]
 git = "https://github.com/adityapk00/librustzcash.git"
-rev = "0743dadcd017b60a0ac7123d04f0d6e7ce1e8016"
+rev = "188537ea025fcb7fbdfc11266f307a084a5451e4"
 default-features = false
 features = ["transparent-inputs"]
 
 [dependencies.zcash_proofs]
 git = "https://github.com/adityapk00/librustzcash.git"
-rev = "0743dadcd017b60a0ac7123d04f0d6e7ce1e8016"
+rev = "188537ea025fcb7fbdfc11266f307a084a5451e4"
 default-features = false
 
 [dependencies.ff]
 git = "https://github.com/adityapk00/librustzcash.git"
-rev = "0743dadcd017b60a0ac7123d04f0d6e7ce1e8016"
+rev = "188537ea025fcb7fbdfc11266f307a084a5451e4"
 features = ["ff_derive"]
 
 [build-dependencies]
 tower-grpc-build = { git = "https://github.com/tower-rs/tower-grpc",  features = ["tower-hyper"]  }
 
-[dev-dependencies]
-rand_core = "0.5.1"
-
 [profile.release]
 debug = false
\ No newline at end of file