diff --git a/Cargo.lock b/Cargo.lock
index b3fd72197..6addab7b1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -658,9 +658,9 @@ dependencies = [
 
 [[package]]
 name = "chrono"
-version = "0.4.34"
+version = "0.4.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5bc015644b92d5890fab7489e49d21f879d5c990186827d42ec511919404f38b"
+checksum = "8a0d04d43504c61aa6c7531f1871dd0d418d91130162063b789da00fd7057a5e"
 dependencies = [
  "android-tzdata",
  "iana-time-zone",
diff --git a/src/imex.rs b/src/imex.rs
index e1887236c..235c97f5e 100644
--- a/src/imex.rs
+++ b/src/imex.rs
@@ -499,7 +499,7 @@ fn get_next_backup_path(
     backup_time: i64,
 ) -> Result<(PathBuf, PathBuf, PathBuf)> {
     let folder = PathBuf::from(folder);
-    let stem = chrono::NaiveDateTime::from_timestamp_opt(backup_time, 0)
+    let stem = chrono::DateTime::<chrono::Utc>::from_timestamp(backup_time, 0)
         .context("can't get next backup path")?
         // Don't change this file name format, in `dc_imex_has_backup` we use string comparison to determine which backup is newer:
         .format("delta-chat-backup-%Y-%m-%d")
diff --git a/src/location.rs b/src/location.rs
index 879bd27e4..d5a2337c1 100644
--- a/src/location.rs
+++ b/src/location.rs
@@ -137,7 +137,7 @@ impl Kml {
                 // 0   4  7  10 13 16 19
                 match chrono::NaiveDateTime::parse_from_str(&val, "%Y-%m-%dT%H:%M:%SZ") {
                     Ok(res) => {
-                        self.curr.timestamp = res.timestamp();
+                        self.curr.timestamp = res.and_utc().timestamp();
                         let now = time();
                         if self.curr.timestamp > now {
                             self.curr.timestamp = now;
@@ -540,7 +540,7 @@ pub async fn get_kml(context: &Context, chat_id: ChatId) -> Result<Option<(Strin
 
 fn get_kml_timestamp(utc: i64) -> String {
     // Returns a string formatted as YYYY-MM-DDTHH:MM:SSZ. The trailing `Z` indicates UTC.
-    chrono::NaiveDateTime::from_timestamp_opt(utc, 0)
+    chrono::DateTime::<chrono::Utc>::from_timestamp(utc, 0)
         .unwrap()
         .format("%Y-%m-%dT%H:%M:%SZ")
         .to_string()
diff --git a/src/mimefactory.rs b/src/mimefactory.rs
index 46fe794c3..84a35abfd 100644
--- a/src/mimefactory.rs
+++ b/src/mimefactory.rs
@@ -575,11 +575,7 @@ impl<'a> MimeFactory<'a> {
             .protected
             .push(Header::new("Subject".into(), encoded_subject));
 
-        let date = chrono::Utc
-            .from_local_datetime(
-                &chrono::NaiveDateTime::from_timestamp_opt(self.timestamp, 0)
-                    .context("can't convert timestamp to NativeDateTime")?,
-            )
+        let date = chrono::DateTime::<chrono::Utc>::from_timestamp(self.timestamp, 0)
             .unwrap()
             .to_rfc2822();
         headers.unprotected.push(Header::new("Date".into(), date));
diff --git a/src/tools.rs b/src/tools.rs
index e26c49dd8..aa434ca10 100644
--- a/src/tools.rs
+++ b/src/tools.rs
@@ -181,6 +181,7 @@ pub fn get_release_timestamp() -> i64 {
         *crate::release::DATE,
         NaiveTime::from_hms_opt(0, 0, 0).unwrap(),
     )
+    .and_utc()
     .timestamp_millis()
         / 1_000
 }
@@ -205,7 +206,7 @@ async fn maybe_warn_on_bad_time(context: &Context, now: i64, known_past_timestam
             ),
         )
         .await;
-        if let Some(timestamp) = chrono::NaiveDateTime::from_timestamp_opt(now, 0) {
+        if let Some(timestamp) = chrono::DateTime::<chrono::Utc>::from_timestamp(now, 0) {
             add_device_msg_with_importance(
                 context,
                 Some(
@@ -232,7 +233,7 @@ async fn maybe_warn_on_outdated(context: &Context, now: i64, approx_compile_time
     if now > approx_compile_time + DC_OUTDATED_WARNING_DAYS * 24 * 60 * 60 {
         let mut msg = Message::new(Viewtype::Text);
         msg.text = stock_str::update_reminder_msg_body(context).await;
-        if let Some(timestamp) = chrono::NaiveDateTime::from_timestamp_opt(now, 0) {
+        if let Some(timestamp) = chrono::DateTime::<chrono::Utc>::from_timestamp(now, 0) {
             add_device_msg(
                 context,
                 Some(
@@ -1214,6 +1215,7 @@ DKIM Results: Passed=true, Works=true, Allow_Keychange=true";
             NaiveDate::from_ymd_opt(2020, 9, 1).unwrap(),
             NaiveTime::from_hms_opt(0, 0, 0).unwrap(),
         )
+        .and_utc()
         .timestamp_millis()
             / 1_000;
 
@@ -1329,6 +1331,7 @@ DKIM Results: Passed=true, Works=true, Allow_Keychange=true";
             NaiveDate::from_ymd_opt(2020, 9, 9).unwrap(),
             NaiveTime::from_hms_opt(0, 0, 0).unwrap(),
         )
+        .and_utc()
         .timestamp_millis()
             / 1_000;
         assert!(get_release_timestamp() <= time());