diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 377f24346..0c5793066 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,4 +1,4 @@
 {
-  ".": "3.1.0",
+  ".": "3.1.1",
   "packages/band-mcp": "2.2.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fc77e4f82..13d40a7fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,14 @@ The format is based on [Conventional Commits](https://www.conventionalcommits.or
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 This changelog is automatically generated by [Release Please](https://github.com/googleapis/release-please).
 
+## [3.1.1](https://github.com/band-ai/band-sdk-python/compare/band-sdk-v3.1.0...band-sdk-v3.1.1) (2026-09-12)
+
+
+### Bug Fixes
+
+* document release baseline refresh ([#628](https://github.com/band-ai/band-sdk-python/issues/628)) ([eeb2cda](https://github.com/band-ai/band-sdk-python/commit/eeb2cda46c42ce1f4b80ea0057c923f9fe997cef))
+* retry CrewAI's first-call empty completion before failing ([#624](https://github.com/band-ai/band-sdk-python/issues/624)) ([83ccf8d](https://github.com/band-ai/band-sdk-python/commit/83ccf8d4c902a58d4391c80d2cd3b9557945f9bc))
+
 ## [3.1.0](https://github.com/band-ai/band-sdk-python/compare/band-sdk-v3.0.0...band-sdk-v3.1.0) (2026-09-11)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 9a137818f..8d360d50e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "band-sdk"
-version = "3.1.0"
+version = "3.1.1"
 description = "A Python SDK for Band API"
 readme = "README.md"
 requires-python = ">=3.11"
diff --git a/uv.lock b/uv.lock
index b71a80d92..ab9022a0a 100644
--- a/uv.lock
+++ b/uv.lock
@@ -530,7 +530,7 @@ requires-dist = [
 
 [[package]]
 name = "band-sdk"
-version = "3.1.0"
+version = "3.1.1"
 source = { editable = "." }
 dependencies = [
     { name = "async-lru" },