diff --git a/src/k2v-client/Cargo.toml b/src/k2v-client/Cargo.toml
index 224414ab..2f8a2679 100644
--- a/src/k2v-client/Cargo.toml
+++ b/src/k2v-client/Cargo.toml
@@ -1,7 +1,12 @@
 [package]
 name = "k2v-client"
-version = "0.1.0"
+version = "0.0.1"
+authors = ["Trinity Pointard <trinity.pointard@gmail.com>", "Alex Auvolat <alex@adnab.me>"]
 edition = "2018"
+license = "AGPL-3.0"
+description = "Client library for the Garage K2V protocol"
+repository = "https://git.deuxfleurs.fr/Deuxfleurs/garage"
+readme = "../../README.md"
 
 [dependencies]
 base64 = "0.13.0"
@@ -17,7 +22,7 @@ tokio = "1.17.0"
 
 # cli deps
 clap = { version = "3.1.18", optional = true, features = ["derive", "env"] }
-garage_util = { path = "../util", optional = true }
+garage_util = { version = "0.7.0", path = "../util", optional = true }
 
 
 [features]
diff --git a/src/k2v-client/bin/k2v-cli.rs b/src/k2v-client/bin/k2v-cli.rs
index 884e7438..925ebeb8 100644
--- a/src/k2v-client/bin/k2v-cli.rs
+++ b/src/k2v-client/bin/k2v-cli.rs
@@ -1,3 +1,5 @@
+use std::time::Duration;
+
 use k2v_client::*;
 
 use garage_util::formater::format_table;
@@ -64,6 +66,9 @@ enum Command {
 		/// Causality information
 		#[clap(short, long)]
 		causality: String,
+		/// Timeout, in seconds
+		#[clap(short, long)]
+		timeout: Option<u64>,
 		/// Output formating
 		#[clap(flatten)]
 		output_kind: ReadOutputKind,
@@ -341,10 +346,12 @@ async fn main() -> Result<(), Error> {
 			partition_key,
 			sort_key,
 			causality,
+			timeout,
 			output_kind,
 		} => {
+			let timeout = timeout.map(Duration::from_secs);
 			let res_opt = client
-				.poll_item(&partition_key, &sort_key, causality.into(), None)
+				.poll_item(&partition_key, &sort_key, causality.into(), timeout)
 				.await?;
 			if let Some(res) = res_opt {
 				output_kind.display_output(res);
diff --git a/src/k2v-client/lib.rs b/src/k2v-client/lib.rs
index 95974d7a..c2606af4 100644
--- a/src/k2v-client/lib.rs
+++ b/src/k2v-client/lib.rs
@@ -122,14 +122,14 @@ impl K2vClient {
 
 		let res = self.dispatch(req, Some(timeout + DEFAULT_TIMEOUT)).await?;
 
-		let causality = res
-			.causality_token
-			.ok_or_else(|| Error::InvalidResponse("missing causality token".into()))?;
-
 		if res.status == StatusCode::NOT_MODIFIED {
 			return Ok(None);
 		}
 
+		let causality = res
+			.causality_token
+			.ok_or_else(|| Error::InvalidResponse("missing causality token".into()))?;
+
 		if res.status == StatusCode::NO_CONTENT {
 			return Ok(Some(CausalValue {
 				causality,