diff --git a/zcash_client_backend/Cargo.toml b/zcash_client_backend/Cargo.toml
index da0518aa7b..b30df8f936 100644
--- a/zcash_client_backend/Cargo.toml
+++ b/zcash_client_backend/Cargo.toml
@@ -13,7 +13,7 @@ license = "MIT OR Apache-2.0"
 edition = "2018"
 
 [dependencies]
-bech32 = "0.8"
+bech32 = "0.9.1"
 bls12_381 = "0.3.1"
 bs58 = { version = "0.4", features = ["check"] }
 base64 = "0.13"
diff --git a/zcash_client_sqlite/Cargo.toml b/zcash_client_sqlite/Cargo.toml
index 5e1efe0f63..30034cbdf2 100644
--- a/zcash_client_sqlite/Cargo.toml
+++ b/zcash_client_sqlite/Cargo.toml
@@ -13,7 +13,7 @@ license = "MIT OR Apache-2.0"
 edition = "2018"
 
 [dependencies]
-bech32 = "0.8"
+bech32 = "0.9.1"
 bs58 = { version = "0.4", features = ["check"] }
 ff = "0.8"
 group = "0.8"
diff --git a/zcash_primitives/Cargo.toml b/zcash_primitives/Cargo.toml
index a950331cff..de8815b468 100644
--- a/zcash_primitives/Cargo.toml
+++ b/zcash_primitives/Cargo.toml
@@ -16,7 +16,7 @@ edition = "2018"
 all-features = true
 
 [dependencies]
-aes = "0.6"
+aes = "0.7"
 bitvec = "0.18"
 blake2b_simd = "0.5"
 blake2s_simd = "0.5"
@@ -25,7 +25,7 @@ byteorder = "1"
 crypto_api_chachapoly = "0.4"
 equihash = { version = "0.1", path = "../components/equihash" }
 ff = "0.8"
-fpe = "0.4"
+fpe = "0.5"
 group = "0.8"
 hex = "0.4"
 jubjub = "0.5.1"