diff --git a/src/authres.rs b/src/authres.rs
index 4d6e86d83..84504d1ee 100644
--- a/src/authres.rs
+++ b/src/authres.rs
@@ -260,7 +260,6 @@ fn parse_authservid_candidates_config(config: &Option<String>) -> BTreeSet<&str>
 
 #[cfg(test)]
 mod tests {
-    #![allow(clippy::indexing_slicing)]
     use tokio::fs;
     use tokio::io::AsyncReadExt;
 
diff --git a/src/configure.rs b/src/configure.rs
index 990501468..c317f6819 100644
--- a/src/configure.rs
+++ b/src/configure.rs
@@ -611,8 +611,6 @@ pub enum Error {
 
 #[cfg(test)]
 mod tests {
-    #![allow(clippy::indexing_slicing)]
-
     use super::*;
     use crate::config::Config;
     use crate::login_param::EnteredServerLoginParam;
diff --git a/src/configure/auto_mozilla.rs b/src/configure/auto_mozilla.rs
index 4560bf52d..1e007e901 100644
--- a/src/configure/auto_mozilla.rs
+++ b/src/configure/auto_mozilla.rs
@@ -272,8 +272,6 @@ pub(crate) async fn moz_autoconfigure(
 
 #[cfg(test)]
 mod tests {
-    #![allow(clippy::indexing_slicing)]
-
     use super::*;
 
     #[test]
diff --git a/src/configure/auto_outlook.rs b/src/configure/auto_outlook.rs
index a3fef6f32..533305eba 100644
--- a/src/configure/auto_outlook.rs
+++ b/src/configure/auto_outlook.rs
@@ -215,8 +215,6 @@ pub(crate) async fn outlk_autodiscover(
 
 #[cfg(test)]
 mod tests {
-    #![allow(clippy::indexing_slicing)]
-
     use super::*;
 
     #[test]
diff --git a/src/location.rs b/src/location.rs
index f2fa919b8..5dcc9a258 100644
--- a/src/location.rs
+++ b/src/location.rs
@@ -880,8 +880,6 @@ async fn maybe_send_locations(context: &Context) -> Result<Option<u64>> {
 
 #[cfg(test)]
 mod tests {
-    #![allow(clippy::indexing_slicing)]
-
     use super::*;
     use crate::config::Config;
     use crate::message::MessageState;
diff --git a/src/mimefactory.rs b/src/mimefactory.rs
index 83556c0d0..fb294b107 100644
--- a/src/mimefactory.rs
+++ b/src/mimefactory.rs
@@ -2274,7 +2274,6 @@ mod tests {
         let msg = message.as_string();
 
         let header_end = msg.find("Hi").unwrap();
-        #[allow(clippy::indexing_slicing)]
         let headers = msg[0..header_end].trim();
 
         assert!(!headers.lines().any(|l| l.trim().is_empty()));
diff --git a/src/mimeparser.rs b/src/mimeparser.rs
index 095d4e12f..ac493514b 100644
--- a/src/mimeparser.rs
+++ b/src/mimeparser.rs
@@ -2362,8 +2362,6 @@ async fn ndn_maybe_add_info_msg(
 
 #[cfg(test)]
 mod tests {
-    #![allow(clippy::indexing_slicing)]
-
     use mailparse::ParsedMail;
 
     use super::*;
diff --git a/src/provider.rs b/src/provider.rs
index a909d3ead..78aade13c 100644
--- a/src/provider.rs
+++ b/src/provider.rs
@@ -288,8 +288,6 @@ pub fn get_provider_by_id(id: &str) -> Option<&'static Provider> {
 
 #[cfg(test)]
 mod tests {
-    #![allow(clippy::indexing_slicing)]
-
     use super::*;
     use crate::test_utils::TestContext;
 
diff --git a/src/test_utils.rs b/src/test_utils.rs
index 4a8473bc0..85d232ded 100644
--- a/src/test_utils.rs
+++ b/src/test_utils.rs
@@ -1,7 +1,6 @@
 //! Utilities to help writing tests.
 //!
 //! This private module is only compiled for test runs.
-#![allow(clippy::indexing_slicing)]
 use std::collections::{BTreeMap, HashSet};
 use std::fmt::Write;
 use std::ops::{Deref, DerefMut};
diff --git a/src/tests/aeap.rs b/src/tests/aeap.rs
index b2b599e0e..18ea10041 100644
--- a/src/tests/aeap.rs
+++ b/src/tests/aeap.rs
@@ -1,5 +1,3 @@
-#![allow(clippy::indexing_slicing)]
-
 use anyhow::Result;
 
 use crate::chat;
diff --git a/src/tools.rs b/src/tools.rs
index 89c50759d..f4a72fec0 100644
--- a/src/tools.rs
+++ b/src/tools.rs
@@ -709,8 +709,6 @@ pub(crate) fn inc_and_check<T: PrimInt + AddAssign + std::fmt::Debug>(
 
 #[cfg(test)]
 mod tests {
-    #![allow(clippy::indexing_slicing)]
-
     use chrono::NaiveDate;
     use proptest::prelude::*;