diff --git a/Cargo.lock b/Cargo.lock
index e49526d..65161a8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -207,9 +207,9 @@ dependencies = [
 
 [[package]]
 name = "clap_complete"
-version = "4.4.8"
+version = "4.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eaf7dcb7c21d8ca1a2482ee0f1d341f437c9a7af6ca6da359dc5e1b164e98215"
+checksum = "abb745187d7f4d76267b37485a65e0149edd0e91a4cfcdd3f27524ad86cee9f3"
 dependencies = [
  "clap",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index ca2681a..df4d095 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 anyhow = "1.0.53"
 blake3 = "1.3.3"
 clap = { version = "4", features = ["derive", "env", "wrap_help"] }
-clap_complete = "4"
+clap_complete = "4.4.10"
 console = "0.15.4"
 dirs = "5"
 fastrand = "2"
diff --git a/src/command/args.rs b/src/command/args.rs
index 70a5481..c186322 100644
--- a/src/command/args.rs
+++ b/src/command/args.rs
@@ -6,7 +6,7 @@ pub use encode::*;
 pub use vmaf::*;
 
 use crate::{command::encode::default_output_ext, ffprobe::Ffprobe};
-use clap::Parser;
+use clap::{Parser, ValueHint};
 use std::{
     path::{Path, PathBuf},
     sync::Arc,
@@ -19,7 +19,7 @@ pub struct EncodeToOutput {
     /// Output file, by default the same as input with `.av1` before the extension.
     ///
     /// E.g. if unspecified: -i vid.mkv --> vid.av1.mkv
-    #[arg(short, long)]
+    #[arg(short, long, value_hint = ValueHint::FilePath)]
     pub output: Option<PathBuf>,
 
     /// Set the output ffmpeg audio codec.
@@ -69,7 +69,7 @@ pub struct Sample {
 
     /// Directory to store temporary sample data in.
     /// Defaults to using the input's directory.
-    #[arg(long, env = "AB_AV1_TEMP_DIR")]
+    #[arg(long, env = "AB_AV1_TEMP_DIR", value_hint = ValueHint::DirPath)]
     pub temp_dir: Option<PathBuf>,
 
     /// Extension preference for encoded samples (ffmpeg encoder only).
diff --git a/src/command/args/encode.rs b/src/command/args/encode.rs
index 7cd1b02..e3981c9 100644
--- a/src/command/args/encode.rs
+++ b/src/command/args/encode.rs
@@ -4,7 +4,7 @@ use crate::{
     float::TerseF32,
 };
 use anyhow::ensure;
-use clap::Parser;
+use clap::{Parser, ValueHint};
 use std::{
     collections::HashMap,
     fmt::{self, Write},
@@ -23,7 +23,7 @@ pub struct Encode {
     pub encoder: Encoder,
 
     /// Input video file.
-    #[arg(short, long)]
+    #[arg(short, long, value_hint = ValueHint::FilePath)]
     pub input: PathBuf,
 
     /// Ffmpeg video filter applied to the input before av1 encoding.