diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f43d1a06b..327a8de1c3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+## [1.7.7] — 2026-03-02
+
+### 🐛 Bug Fixes
+
+- **Gemini Tool Schema Sanitization** — The standard Gemini provider now sanitizes OpenAI tool schemas before forwarding to Gemini API, removing unsupported JSON Schema keywords (`additionalProperties`, `$schema`, `const`, `default`, `not`, etc.). Previously, sanitization only ran in the CLI executor path, causing Gemini to reject tool calls when schemas contained unsupported constraints. Also applied sanitization to `response_format.json_schema`. Fixes #173
+
 ## [1.7.6] — 2026-03-02
 
 ### 🐛 Bug Fixes
diff --git a/package-lock.json b/package-lock.json
index a22ce27d39..1c83097322 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "omniroute",
-  "version": "1.7.6",
+  "version": "1.7.7",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "omniroute",
-      "version": "1.7.6",
+      "version": "1.7.7",
       "hasInstallScript": true,
       "license": "MIT",
       "workspaces": [
diff --git a/package.json b/package.json
index e675c102a7..8b4a76391c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "omniroute",
-  "version": "1.7.6",
+  "version": "1.7.7",
   "description": "Smart AI Router with auto fallback — route to FREE & cheap models, zero downtime. Works with Cursor, Cline, Claude Desktop, Codex, and any OpenAI-compatible tool.",
   "type": "module",
   "bin": {