diff --git a/zcash_client_backend/Cargo.toml b/zcash_client_backend/Cargo.toml
index 041762a24..a831cfb6a 100644
--- a/zcash_client_backend/Cargo.toml
+++ b/zcash_client_backend/Cargo.toml
@@ -13,12 +13,12 @@ edition = "2018"
 
 [dependencies]
 bech32 = "0.7"
-bls12_381 = "0.3"
+bls12_381 = "0.3.1"
 bs58 = { version = "0.3", features = ["check"] }
 ff = "0.8"
 group = "0.8"
 hex = "0.4"
-jubjub = "0.5"
+jubjub = "0.5.1"
 protobuf = "2.15"
 subtle = "2"
 zcash_primitives = { version = "0.3", path = "../zcash_primitives" }
diff --git a/zcash_client_sqlite/Cargo.toml b/zcash_client_sqlite/Cargo.toml
index 13dea3a11..fbf33a245 100644
--- a/zcash_client_sqlite/Cargo.toml
+++ b/zcash_client_sqlite/Cargo.toml
@@ -16,7 +16,7 @@ bech32 = "0.7"
 bs58 = { version = "0.3", features = ["check"] }
 ff = "0.8"
 group = "0.8"
-jubjub = "0.5"
+jubjub = "0.5.1"
 protobuf = "2.15"
 rand_core = "0.5.1"
 rusqlite = { version = "0.24", features = ["bundled", "time"] }
diff --git a/zcash_primitives/Cargo.toml b/zcash_primitives/Cargo.toml
index 97f41bb90..be9a5e92e 100644
--- a/zcash_primitives/Cargo.toml
+++ b/zcash_primitives/Cargo.toml
@@ -19,7 +19,7 @@ aes = "0.5"
 bitvec = "0.18"
 blake2b_simd = "0.5"
 blake2s_simd = "0.5"
-bls12_381 = "0.3"
+bls12_381 = "0.3.1"
 byteorder = "1"
 crypto_api_chachapoly = "0.4"
 equihash = { version = "0.1", path = "../components/equihash" }
@@ -27,7 +27,7 @@ ff = "0.8"
 fpe = "0.3"
 group = "0.8"
 hex = "0.4"
-jubjub = "0.5"
+jubjub = "0.5.1"
 lazy_static = "1"
 log = "0.4"
 rand = "0.7"
diff --git a/zcash_proofs/Cargo.toml b/zcash_proofs/Cargo.toml
index d84197246..b6eccdbd5 100644
--- a/zcash_proofs/Cargo.toml
+++ b/zcash_proofs/Cargo.toml
@@ -17,12 +17,12 @@ all-features = true
 [dependencies]
 bellman = { version = "0.8", default-features = false, features = ["groth16"] }
 blake2b_simd = "0.5"
-bls12_381 = "0.3"
+bls12_381 = "0.3.1"
 byteorder = "1"
 directories = { version = "3", optional = true }
 ff = "0.8"
 group = "0.8"
-jubjub = "0.5"
+jubjub = "0.5.1"
 lazy_static = "1"
 minreq = { version = "2", features = ["https"], optional = true }
 rand_core = "0.5.1"