diff --git a/src/commands/pczt/prove.rs b/src/commands/pczt/prove.rs
index b2415b9..3a93b33 100644
--- a/src/commands/pczt/prove.rs
+++ b/src/commands/pczt/prove.rs
@@ -20,7 +20,7 @@ pub(crate) struct Command {
     /// Hex encoding of the Sapling proof generation key
     #[arg(long)]
     #[arg(value_parser = parse_hex)]
-    sapling_proof_generation_key: Option<Vec<u8>>,
+    sapling_proof_generation_key: Option<std::vec::Vec<u8>>,
 
     /// age identity file to decrypt the mnemonic phrase with for deriving the Sapling proof generation key
     #[arg(short, long)]
diff --git a/src/commands/wallet/import_ufvk.rs b/src/commands/wallet/import_ufvk.rs
index 4ed19a7..b8b8f97 100644
--- a/src/commands/wallet/import_ufvk.rs
+++ b/src/commands/wallet/import_ufvk.rs
@@ -33,7 +33,7 @@ pub(crate) struct Command {
     /// Hex encoding of the ZIP 32 fingerprint for the seed from which the UFVK was derived
     #[arg(long)]
     #[arg(value_parser = parse_hex)]
-    seed_fingerprint: Option<Vec<u8>>,
+    seed_fingerprint: Option<std::vec::Vec<u8>>,
 
     /// ZIP 32 account index corresponding to the UFVK
     #[arg(long)]
diff --git a/src/commands/wallet/init_fvk.rs b/src/commands/wallet/init_fvk.rs
index 16efc9d..8e064a6 100644
--- a/src/commands/wallet/init_fvk.rs
+++ b/src/commands/wallet/init_fvk.rs
@@ -35,7 +35,7 @@ pub(crate) struct Command {
     /// Hex encoding of the ZIP 32 fingerprint for the seed from which the UFVK was derived
     #[arg(long)]
     #[arg(value_parser = parse_hex)]
-    seed_fingerprint: Option<Vec<u8>>,
+    seed_fingerprint: Option<std::vec::Vec<u8>>,
 
     /// ZIP 32 account index corresponding to the UFVK
     #[arg(long)]