diff --git a/CHANGELOG.md b/CHANGELOG.md
index e71072c0..26850dd0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,9 @@
 - improve filtermail checks for encrypted messages and drop support for unencrypted MDNs
   ([#320](https://github.com/deltachat/chatmail/pull/320))
 
+- replace `bash` with `/bin/sh`
+  ([#334](https://github.com/deltachat/chatmail/pull/334))
+
 ## 1.3.0 - 2024-06-06
 
 - don't check necessary DNS records on cmdeploy init anymore
diff --git a/scripts/cmdeploy b/scripts/cmdeploy
index 5a410e58..4cee81e3 100755
--- a/scripts/cmdeploy
+++ b/scripts/cmdeploy
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/sh
 #
 # Wrapper for cmdelpoy to run it in activated virtualenv.
 set -e
diff --git a/scripts/dovecot/build-obs.sh b/scripts/dovecot/build-obs.sh
index 2d599465..c172853f 100644
--- a/scripts/dovecot/build-obs.sh
+++ b/scripts/dovecot/build-obs.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 # Install dependencies
 echo "Installing dependencies for this script:"
diff --git a/scripts/initenv.sh b/scripts/initenv.sh
index a9169e72..3ece965e 100755
--- a/scripts/initenv.sh
+++ b/scripts/initenv.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 set -e
 python3 -m venv --upgrade-deps venv