diff --git a/.changes/unreleased/Fixed-20250506-095400.yaml b/.changes/unreleased/Fixed-20250506-095400.yaml
deleted file mode 100644
index c1ff171..0000000
--- a/.changes/unreleased/Fixed-20250506-095400.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-kind: Fixed
-body: Fixed missing `__init__` return type annotation and connection parameter type when using `asyncpg` driver.
-time: 2025-05-06T09:54:00.0000000+01:00
-custom:
-  Author: tandemdude
-  PR: "50"
diff --git a/.changes/unreleased/Fixed-20250507-234250.yaml b/.changes/unreleased/Fixed-20250507-234250.yaml
deleted file mode 100644
index 9aac1e7..0000000
--- a/.changes/unreleased/Fixed-20250507-234250.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-kind: Fixed
-body: Wrong deserialization of `datetime.datetime` when using `asyncpg`
-time: 2025-05-07T23:42:50.7837495+02:00
-custom:
-    Author: rayakame
-    PR: "53"
diff --git a/.changes/unreleased/Fixed-20250507-234318.yaml b/.changes/unreleased/Fixed-20250507-234318.yaml
deleted file mode 100644
index 89f85e3..0000000
--- a/.changes/unreleased/Fixed-20250507-234318.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-kind: Fixed
-body: Fixed unnecessary type conversion when returning data from queries using `asyncpg`
-time: 2025-05-07T23:43:18.6210029+02:00
-custom:
-    Author: rayakame
-    PR: "53"
diff --git a/.changes/v0.3.1.md b/.changes/v0.3.1.md
new file mode 100644
index 0000000..f319580
--- /dev/null
+++ b/.changes/v0.3.1.md
@@ -0,0 +1,5 @@
+## v0.3.1 - 2025-05-07
+### Fixed
+* [#50](https://github.com/rayakame/sqlc-gen-better-python/pull/50) Fixed missing `__init__` return type annotation and connection parameter type when using `asyncpg` driver. (tandemdude)
+* [#53](https://github.com/rayakame/sqlc-gen-better-python/pull/53) Wrong deserialization of `datetime.datetime` when using `asyncpg` (rayakame)
+* [#53](https://github.com/rayakame/sqlc-gen-better-python/pull/53) Fixed unnecessary type conversion when returning data from queries using `asyncpg` (rayakame)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f5864e..22f0634 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 All notable changes to this project will be documented in this file.
 
 
+## v0.3.1 - 2025-05-07
+### Fixed
+* [#50](https://github.com/rayakame/sqlc-gen-better-python/pull/50) Fixed missing `__init__` return type annotation and connection parameter type when using `asyncpg` driver. (tandemdude)
+* [#53](https://github.com/rayakame/sqlc-gen-better-python/pull/53) Wrong deserialization of `datetime.datetime` when using `asyncpg` (rayakame)
+* [#53](https://github.com/rayakame/sqlc-gen-better-python/pull/53) Fixed unnecessary type conversion when returning data from queries using `asyncpg` (rayakame)
+
 ## v0.3.0 - 2025-05-05
 ### Added
 * [#37](https://github.com/rayakame/sqlc-gen-better-python/pull/37) Added `debug` config option to enable debug output. (rayakame)
diff --git a/internal/core/config.go b/internal/core/config.go
index 2d383ce..40bc545 100644
--- a/internal/core/config.go
+++ b/internal/core/config.go
@@ -6,7 +6,7 @@ import (
 	"github.com/sqlc-dev/plugin-sdk-go/plugin"
 )
 
-const PluginVersion = "v0.3.0"
+const PluginVersion = "v0.3.1"
 
 type Config struct {
 	Package                     string        `json:"package" yaml:"package"`