diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e963276e..eda9ccb96 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,35 @@
 # Changelog
 
+## [1.131.5] - 2023-11-20
+
+### API-Changes
+
+- deltachat-rpc-client: Add `Message.get_sender_contact()`.
+- Turn `ContactAddress` into an owned type.
+
+### Features / Changes
+
+- Lowercase addresses in Autocrypt and Autocrypt-Gossip headers.
+- Lowercase the address in member added/removed messages.
+- Lowercase `addr` when it is set.
+- Do not replace the message with an error in square brackets when the sender is not a member of the protected group.
+
+### Fixes
+
+- `Chat::sync_contacts()`: Fetch contact addresses in a single query.
+- `Chat::rename_ex()`: Sync improved chat name to other devices.
+- Recognize `Chat-Group-Member-Added` of self case-insensitively.
+- Compare verifier addr to peerstate addr case-insensitively.
+
+### Tests
+
+- Port [Secure-Join](https://securejoin.readthedocs.io/) tests to JSON-RPC.
+
+### CI
+
+- Test with Rust 1.74.
+
+
 ## [1.131.4] - 2023-11-16
 
 ### Documentation
@@ -3221,3 +3251,4 @@ https://github.com/deltachat/deltachat-core-rust/pulls?q=is%3Apr+is%3Aclosed
 [1.131.2]: https://github.com/deltachat/deltachat-core-rust/compare/v1.131.1...v1.131.2
 [1.131.3]: https://github.com/deltachat/deltachat-core-rust/compare/v1.131.2...v1.131.3
 [1.131.4]: https://github.com/deltachat/deltachat-core-rust/compare/v1.131.3...v1.131.4
+[1.131.5]: https://github.com/deltachat/deltachat-core-rust/compare/v1.131.4...v1.131.5
diff --git a/Cargo.lock b/Cargo.lock
index 9f2f19496..335f1788d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1087,7 +1087,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat"
-version = "1.131.4"
+version = "1.131.5"
 dependencies = [
  "ansi_term",
  "anyhow",
@@ -1165,7 +1165,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-jsonrpc"
-version = "1.131.4"
+version = "1.131.5"
 dependencies = [
  "anyhow",
  "async-channel 2.1.0",
@@ -1189,7 +1189,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-repl"
-version = "1.131.4"
+version = "1.131.5"
 dependencies = [
  "ansi_term",
  "anyhow",
@@ -1204,7 +1204,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-rpc-server"
-version = "1.131.4"
+version = "1.131.5"
 dependencies = [
  "anyhow",
  "deltachat",
@@ -1229,7 +1229,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat_ffi"
-version = "1.131.4"
+version = "1.131.5"
 dependencies = [
  "anyhow",
  "deltachat",
diff --git a/Cargo.toml b/Cargo.toml
index dfbc7ce90..6f0280d75 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat"
-version = "1.131.4"
+version = "1.131.5"
 edition = "2021"
 license = "MPL-2.0"
 rust-version = "1.70"
diff --git a/deltachat-ffi/Cargo.toml b/deltachat-ffi/Cargo.toml
index d51771aa8..686fdf181 100644
--- a/deltachat-ffi/Cargo.toml
+++ b/deltachat-ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat_ffi"
-version = "1.131.4"
+version = "1.131.5"
 description = "Deltachat FFI"
 edition = "2018"
 readme = "README.md"
diff --git a/deltachat-jsonrpc/Cargo.toml b/deltachat-jsonrpc/Cargo.toml
index fcbfed50a..b9ce3dccf 100644
--- a/deltachat-jsonrpc/Cargo.toml
+++ b/deltachat-jsonrpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-jsonrpc"
-version = "1.131.4"
+version = "1.131.5"
 description = "DeltaChat JSON-RPC API"
 edition = "2021"
 default-run = "deltachat-jsonrpc-server"
diff --git a/deltachat-jsonrpc/typescript/package.json b/deltachat-jsonrpc/typescript/package.json
index fa7e10220..2c531e3a2 100644
--- a/deltachat-jsonrpc/typescript/package.json
+++ b/deltachat-jsonrpc/typescript/package.json
@@ -53,5 +53,5 @@
   },
   "type": "module",
   "types": "dist/deltachat.d.ts",
-  "version": "1.131.4"
+  "version": "1.131.5"
 }
diff --git a/deltachat-repl/Cargo.toml b/deltachat-repl/Cargo.toml
index f8a99f3e2..532801c28 100644
--- a/deltachat-repl/Cargo.toml
+++ b/deltachat-repl/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-repl"
-version = "1.131.4"
+version = "1.131.5"
 license = "MPL-2.0"
 edition = "2021"
 
diff --git a/deltachat-rpc-server/Cargo.toml b/deltachat-rpc-server/Cargo.toml
index edf16244a..ecdc9fc6e 100644
--- a/deltachat-rpc-server/Cargo.toml
+++ b/deltachat-rpc-server/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-rpc-server"
-version = "1.131.4"
+version = "1.131.5"
 description = "DeltaChat JSON-RPC server"
 edition = "2021"
 readme = "README.md"
diff --git a/package.json b/package.json
index e3a96a160..f28c53f82 100644
--- a/package.json
+++ b/package.json
@@ -56,5 +56,5 @@
     "test:mocha": "mocha -r esm node/test/test.js --growl --reporter=spec --bail --exit"
   },
   "types": "node/dist/index.d.ts",
-  "version": "1.131.4"
+  "version": "1.131.5"
 }
diff --git a/release-date.in b/release-date.in
index 5bf769378..a2a39cff4 100644
--- a/release-date.in
+++ b/release-date.in
@@ -1 +1 @@
-2023-11-16
\ No newline at end of file
+2023-11-20
\ No newline at end of file