diff --git a/CHANGELOG.md b/CHANGELOG.md
index 494c1de..5fa4b7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+# (2026-06-05) Version 1.21.0
+
+- (**Improvement**) Default to OpenAI's `gpt-image-2` model for image generation (in newly-created OpenAI agents and the sample provider configs).
+
+- (**Internal Improvement**) Update [async-openai](https://crates.io/crates/async-openai) from 0.40 to 0.41, which [resynchronizes with the upstream OpenAI API spec](https://github.com/64bit/async-openai/issues/557) after it had drifted out of sync — a mismatch that was already causing some breakage (hopefully now resolved). Adapts to the newly-added `gpt-image-2` image model and an `ImageSize` type change.
+
+- (**Internal Improvement**) Dependency updates.
+
+
 # (2026-06-02) Version 1.20.0
 
 - (**Internal Improvement**) Update [matrix-sdk](https://crates.io/crates/matrix-sdk) from 0.17 to 0.18 and [mxlink](https://crates.io/crates/mxlink) to 1.15.0.
diff --git a/Cargo.lock b/Cargo.lock
index b5e7643..bf8e999 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -315,7 +315,7 @@ dependencies = [
 
 [[package]]
 name = "baibot"
-version = "1.20.0"
+version = "1.21.0"
 dependencies = [
  "anthropic",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index 6d240a5..7d37c8c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ license = "AGPL-3.0-or-later"
 readme = "README.md"
 keywords = ["matrix", "chat", "bot", "AI", "LLM"]
 include = ["/etc/assets/baibot-torso-768.png", "/src", "/README.md", "/CHANGELOG.md", "/LICENSE"]
-version = "1.20.0"
+version = "1.21.0"
 edition = "2024"
 
 [lib]