diff --git a/zcash_primitives/Cargo.toml b/zcash_primitives/Cargo.toml
index b40744d..48da421 100644
--- a/zcash_primitives/Cargo.toml
+++ b/zcash_primitives/Cargo.toml
@@ -12,13 +12,13 @@ license = "MIT OR Apache-2.0"
 edition = "2018"
 
 [dependencies]
-aes = "0.3"
+aes = "0.6.0"
 blake2b_simd = "0.5"
 blake2s_simd = "0.5"
 byteorder = "1"
 crypto_api_chachapoly = "0.2.1"
 ff = { version = "0.6", path = "../ff" }
-fpe = "0.2"
+fpe = "0.4.0"
 hex = "0.3"
 lazy_static = "1"
 log = "0.4"