diff --git a/.github/workflows/publish-deb-package.yml b/.github/workflows/publish-deb-package.yml
index b46b37da..bfd29f28 100644
--- a/.github/workflows/publish-deb-package.yml
+++ b/.github/workflows/publish-deb-package.yml
@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
     inputs:
       packageVersion:
-        default: "1.1.1"
+        default: "1.1.2-dev"
 jobs:
   build:
     strategy:
diff --git a/Cargo.lock b/Cargo.lock
index ec849329..459312c2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -990,7 +990,7 @@ checksum = "9b2a4787296e9989611394c33f193f676704af1686e70b8f8033ab5ba9a35a94"
 
 [[package]]
 name = "pgcat"
-version = "1.1.1"
+version = "1.1.2-dev"
 dependencies = [
  "arc-swap",
  "async-trait",
diff --git a/Cargo.toml b/Cargo.toml
index c3db48aa..805a4c7a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pgcat"
-version = "1.1.1"
+version = "1.1.2-dev"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
diff --git a/postinst b/postinst
index 54c04119..50138c2b 100644
--- a/postinst
+++ b/postinst
@@ -1,4 +1,9 @@
 #!/bin/bash
+set -e
 
 systemctl daemon-reload
 systemctl enable pgcat
+
+if ! id pgcat 2> /dev/null; then
+	useradd -s /usr/bin/false pgcat
+fi
diff --git a/postrm b/postrm
index ab20f7b0..ec1d0f7e 100644
--- a/postrm
+++ b/postrm
@@ -1,3 +1,4 @@
 #!/bin/bash
+set -e
 
 systemctl daemon-reload
diff --git a/prerm b/prerm
index 6dd0e3ac..601b6991 100644
--- a/prerm
+++ b/prerm
@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 
 systemctl stop pgcat
 systemctl disable pgcat
diff --git a/src/server.rs b/src/server.rs
index c4d7a1af..b006e77b 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -9,7 +9,7 @@ use postgres_protocol::message;
 use std::collections::{BTreeSet, HashMap, HashSet};
 use std::mem;
 use std::net::IpAddr;
-use std::sync::{Arc, Once};
+use std::sync::Arc;
 use std::time::SystemTime;
 use tokio::io::{AsyncRead, AsyncReadExt, AsyncWrite, BufStream};
 use tokio::net::TcpStream;