diff --git a/README.md b/README.md
index 0d74d88..d48a9e2 100644
--- a/README.md
+++ b/README.md
@@ -35,12 +35,8 @@ You only need to set them if the defaults do not work for your situation.
 `path`
 :   Path of file or directory that HLint will be told to scan.
 
-<!--
-Uncomment this when this is ready to be released:
-
 `hints`
 :   Path for HLint configuration file.
--->
 
 `category`
 :   String used by GitHub code scanning for matching the analyses.
diff --git a/action.yaml b/action.yaml
index 4702177..f03029d 100644
--- a/action.yaml
+++ b/action.yaml
@@ -24,8 +24,7 @@ inputs:
     required: false
     default: .
   hints:
-    # Change description when this is released.
-    description: Path for HLint configuration file.  Not available yet.
+    description: Path for HLint configuration file.
     required: false
   category:
     description: String used by GitHub code scanning for matching the analyses.
@@ -42,7 +41,7 @@ outputs:
 
 runs:
   using: docker
-  image: docker://ghcr.io/haskell-actions/hlint-scan:main
+  image: docker://ghcr.io/haskell-actions/hlint-scan:v0.9.0
   args:
     - binary=${{ inputs.binary }}
     - path=${{ inputs.path }}
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index c27b611..31a0cd7 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -10,8 +10,10 @@ the [Haskell Package Versioning Policy].
 
 ## Unreleased
 
+## 0.9.0 - 2023-04-14
+
 *   Support `hints` input for explicitly specifying the HLint configuration file.
-*   Better message formatting on GitHub.
+*   Better message formatting and titles on GitHub.
 
 ## 0.4.1 - 2023-04-10
 
diff --git a/package.yaml b/package.yaml
index 2f4696b..db99a9d 100644
--- a/package.yaml
+++ b/package.yaml
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 name:                hlint-scan
-version:             0.4.1
+version:             0.9.0
 github:              "haskell-actions/hlint-scan"
 license:             Apache-2.0
 author:              "Yoo Chung"