diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e0f246c..beaf9e0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: 1.77.2
+          toolchain: 1.85.0
           override: true
       - run: rustup component add rustfmt
       - uses: actions-rs/cargo@v1
@@ -31,7 +31,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.77.2
+          toolchain: 1.85.0
           components: clippy
           override: true
       - uses: actions-rs/clippy-check@v1
@@ -68,9 +68,9 @@ jobs:
       matrix:
         include:
           - os: ubuntu-latest
-            rust: 1.77.2
+            rust: 1.85.0
           - os: windows-latest
-            rust: 1.77.2
+            rust: 1.85.0
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@main
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 27bd9d9..9ce8cdd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- update rust toolchain version to match MSRV of chatmail core: 1.85.0
+
 ## 0.14.1 - Allow country TLDs in scheme-less links
 
 - allow country TLDs in scheme-less links
@@ -62,7 +64,7 @@
 - upgraded nom to 7
 - The following generic schemes (schemes that don't end in `://`) get linkified now:
     `mailto:`, `news:`, `feed:`, `tel:`, `sms:`, `geo:`, `maps:`, `bitcoin:`, `bitcoincash:`, `eth:`, `ethereum:`, `magnet:`
-- added `scheme` property to `LinkDestination` 
+- added `scheme` property to `LinkDestination`
 
 ## 0.7.0 - All the Hashtags
 
diff --git a/docs.md b/docs.md
index 1f14f09..9f02a9a 100644
--- a/docs.md
+++ b/docs.md
@@ -47,3 +47,13 @@ The third priority is binary size, so be careful with huge extra libraries, mayb
 7. `cd message_parser_wasm/`
 8. `wasm-pack build --scope deltachat --target web`
 9. `wasm-pack publish --target web`
+
+
+### Reorder imports
+We use [`group_imports="StdExternalCrate"`](https://github.com/rust-lang/rustfmt/blob/master/Configurations.md#group_imports) to group imports,
+which requires the nightly version of the rust toolchain,
+so you need to run the following comand to fix the order of the imports:
+
+```
+cargo +nightly fmt -- --config=group_imports="StdExternalCrate"
+```
diff --git a/rust-toolchain b/rust-toolchain
index 369f996..f288d11 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.77.2
+1.85.0
diff --git a/src/parser/is_emoji.rs b/src/parser/is_emoji.rs
index 456fd25..7a5c029 100644
--- a/src/parser/is_emoji.rs
+++ b/src/parser/is_emoji.rs
@@ -243,20 +243,11 @@ mod emoji_test {
         #[test]
         fn test_string_contains_only_emojis_and_count() {
             assert_eq!(count_emojis_if_only_contains_emoji("#️⃣"), Some(1));
-            assert_eq!(
-                count_emojis_if_only_contains_emoji("👩🏽‍❤️‍👨🏽Hashtag"),
-                None
-            );
+            assert_eq!(count_emojis_if_only_contains_emoji("👩🏽‍❤️‍👨🏽Hashtag"), None);
             assert_eq!(count_emojis_if_only_contains_emoji("❤️‍🔥"), Some(1));
             assert_eq!(count_emojis_if_only_contains_emoji("👩🏽‍❤️‍👨🏽"), Some(1));
-            assert_eq!(
-                count_emojis_if_only_contains_emoji("👩🏽‍❤️‍👨🏽👩🏽‍❤️‍👨🏽"),
-                Some(2)
-            );
-            assert_eq!(
-                count_emojis_if_only_contains_emoji("👩🏽‍❤️‍👨🏽❤️‍🔥👩🏽‍❤️‍👨🏽"),
-                Some(3)
-            );
+            assert_eq!(count_emojis_if_only_contains_emoji("👩🏽‍❤️‍👨🏽👩🏽‍❤️‍👨🏽"), Some(2));
+            assert_eq!(count_emojis_if_only_contains_emoji("👩🏽‍❤️‍👨🏽❤️‍🔥👩🏽‍❤️‍👨🏽"), Some(3));
             // hair color
             assert_eq!(count_emojis_if_only_contains_emoji("👨‍🦰"), Some(1));
             assert_eq!(count_emojis_if_only_contains_emoji("👨‍🦳"), Some(1));
diff --git a/src/parser/link_url/ip/ipv6.rs b/src/parser/link_url/ip/ipv6.rs
index 7e0b05c..00bcbcc 100644
--- a/src/parser/link_url/ip/ipv6.rs
+++ b/src/parser/link_url/ip/ipv6.rs
@@ -8,9 +8,8 @@ use nom::{
     IResult,
 };
 
-use crate::parser::{parse_from_text::base_parsers::CustomError, utils::is_hex_digit};
-
 use super::ipv4::ipv4;
+use crate::parser::{parse_from_text::base_parsers::CustomError, utils::is_hex_digit};
 
 fn h16(input: &str) -> IResult<&str, &str, CustomError<&str>> {
     take_while_m_n(1, 4, is_hex_digit)(input)
diff --git a/src/parser/link_url/parse_link.rs b/src/parser/link_url/parse_link.rs
index d9d4d97..3ecd489 100644
--- a/src/parser/link_url/parse_link.rs
+++ b/src/parser/link_url/parse_link.rs
@@ -10,6 +10,11 @@ use nom::{
     IResult, Slice,
 };
 
+use super::{
+    allowed_tlds::check_if_tld_is_allowed,
+    parenthesis_counter::count_chars_in_complete_parenthesis,
+    punycode_warning::get_puny_code_warning,
+};
 use crate::parser::{
     link_url::{
         ip::{ip_literal::ip_literal, ipv4::ipv4},
@@ -22,12 +27,6 @@ use crate::parser::{
     },
 };
 
-use super::{
-    allowed_tlds::check_if_tld_is_allowed,
-    parenthesis_counter::count_chars_in_complete_parenthesis,
-    punycode_warning::get_puny_code_warning,
-};
-
 /// determines which generic schemes (without '://') get linkifyed
 fn is_allowed_generic_scheme(scheme: &str) -> bool {
     matches!(
diff --git a/src/parser/parse_from_text/desktop_subset.rs b/src/parser/parse_from_text/desktop_subset.rs
index b525efd..786c325 100644
--- a/src/parser/parse_from_text/desktop_subset.rs
+++ b/src/parser/parse_from_text/desktop_subset.rs
@@ -7,12 +7,11 @@ use nom::{
     IResult,
 };
 
-use crate::parser::LinkDestination;
-
 use super::base_parsers::CustomError;
 use super::markdown_elements::{delimited_email_address, delimited_link};
 use super::text_elements::parse_text_element;
 use super::Element;
+use crate::parser::LinkDestination;
 
 // [labeled](https://link)
 pub(crate) fn labeled_link(input: &str) -> IResult<&str, Element, CustomError<&str>> {
diff --git a/src/parser/parse_from_text/hashtag_content_char_ranges.rs b/src/parser/parse_from_text/hashtag_content_char_ranges.rs
index 0d816ec..07264d7 100644
--- a/src/parser/parse_from_text/hashtag_content_char_ranges.rs
+++ b/src/parser/parse_from_text/hashtag_content_char_ranges.rs
@@ -1,6 +1,7 @@
-use crate::parser::utils::is_in_one_of_ranges;
 use std::ops::RangeInclusive;
 
+use crate::parser::utils::is_in_one_of_ranges;
+
 const NUMBER_OF_RANGES: usize = 850;
 
 /*
@@ -882,9 +883,10 @@ pub(crate) fn hashtag_content_char(c: char) -> bool {
 
 #[cfg(test)]
 mod test {
+    use std::ops::RangeInclusive;
+
     use crate::parser::parse_from_text::hashtag_content_char_ranges::hashtag_content_char;
     use crate::parser::utils::is_in_one_of_ranges;
-    use std::ops::RangeInclusive;
 
     #[test]
     fn test_range_function() {
diff --git a/src/parser/parse_from_text/text_elements.rs b/src/parser/parse_from_text/text_elements.rs
index f7edab0..cf5f9a9 100644
--- a/src/parser/parse_from_text/text_elements.rs
+++ b/src/parser/parse_from_text/text_elements.rs
@@ -1,8 +1,3 @@
-/// nom parsers for text elements
-use crate::parser::link_url::LinkDestination;
-
-use super::hashtag_content_char_ranges::hashtag_content_char;
-use super::Element;
 use nom::{
     bytes::{
         complete::{tag, take, take_while, take_while1},
@@ -15,6 +10,10 @@ use nom::{
 };
 
 use super::base_parsers::CustomError;
+use super::hashtag_content_char_ranges::hashtag_content_char;
+use super::Element;
+/// nom parsers for text elements
+use crate::parser::link_url::LinkDestination;
 
 fn linebreak(input: &str) -> IResult<&str, char, CustomError<&str>> {
     char('\n')(input)
diff --git a/tests/text_to_ast/desktop_set.rs b/tests/text_to_ast/desktop_set.rs
index 9614da8..8328acb 100644
--- a/tests/text_to_ast/desktop_set.rs
+++ b/tests/text_to_ast/desktop_set.rs
@@ -1,6 +1,7 @@
-use super::*;
 use deltachat_message_parser::parser::{link_url::PunycodeWarning, parse_desktop_set};
 
+use super::*;
+
 #[test]
 fn do_not_parse_markdown_elements() {
     assert_eq!(
diff --git a/tests/text_to_ast/markdown.rs b/tests/text_to_ast/markdown.rs
index b50ba8c..334f194 100644
--- a/tests/text_to_ast/markdown.rs
+++ b/tests/text_to_ast/markdown.rs
@@ -1,6 +1,7 @@
-use super::*;
 use deltachat_message_parser::parser::parse_markdown_text;
 
+use super::*;
+
 #[test]
 fn bold_capitalized_command_suggestion() {
     let input = "**/TELL** world";
diff --git a/tests/text_to_ast/text_only.rs b/tests/text_to_ast/text_only.rs
index 9f349ec..635d3f0 100644
--- a/tests/text_to_ast/text_only.rs
+++ b/tests/text_to_ast/text_only.rs
@@ -1,6 +1,7 @@
-use super::*;
 use deltachat_message_parser::parser::parse_only_text;
 
+use super::*;
+
 #[test]
 fn do_not_parse_markdown_elements() {
     assert_eq!(