diff --git a/CHANGELOG.md b/CHANGELOG.md
index bd9a872..9cfb779 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## v0.9.0
+
+### Features
+- Add support for initial prompt via `-I` flag
+
 ## v0.8.0
 
 ### Features
diff --git a/chat/package.json b/chat/package.json
index d0b11df..64b15ba 100644
--- a/chat/package.json
+++ b/chat/package.json
@@ -44,5 +44,5 @@
     "start": "next start",
     "storybook": "storybook dev -p 6006"
   },
-  "version": "0.8.0"
+  "version": "0.9.0"
 }
diff --git a/internal/version/version.go b/internal/version/version.go
index db499e2..adf9fd3 100644
--- a/internal/version/version.go
+++ b/internal/version/version.go
@@ -2,4 +2,4 @@
 
 package version
 
-var Version = "0.8.0"
+var Version = "0.9.0"
diff --git a/openapi.json b/openapi.json
index 223c312..09b0e0c 100644
--- a/openapi.json
+++ b/openapi.json
@@ -307,7 +307,7 @@
   "info": {
     "description": "HTTP API for Claude Code, Goose, and Aider.\n\nhttps://github.com/coder/agentapi",
     "title": "AgentAPI",
-    "version": "0.8.0"
+    "version": "0.9.0"
   },
   "openapi": "3.1.0",
   "paths": {