diff --git a/CHANGELOG.md b/CHANGELOG.md
index c4c35742..d2275cca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 Full release notes with details on each version: [GitHub Releases](https://github.com/safishamsi/graphify/releases)
 
+## 0.6.4 (2026-05-02)
+
+- Fix: Codex PreToolUse hook failed on Windows — `[ -f ]` is bash-only and crashes on `cmd.exe`; replaced with a cross-platform Python one-liner (`pathlib.Path.exists()`) (#651)
+
 ## 0.6.3 (2026-05-02)
 
 - Fix: incremental rebuild (`graphify update`, post-commit hook) dropped INFERRED/AMBIGUOUS semantic nodes extracted from code files — node preservation now filters by ID membership in the new AST output instead of `file_type`, so LLM-extracted call/data-flow edges survive code-only rebuilds (#653)
diff --git a/pyproject.toml b/pyproject.toml
index 6b247b30..9d82a03a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "graphifyy"
-version = "0.6.3"
+version = "0.6.4"
 description = "AI coding assistant skill (Claude Code, Codex, OpenCode, Cursor, Gemini CLI, Aider, OpenClaw, Factory Droid, Trae, Hermes, Kiro, Google Antigravity) - turn any folder of code, docs, papers, images, or videos into a queryable knowledge graph"
 readme = "README.md"
 license = { file = "LICENSE" }