diff --git a/packages/oauth/CHANGELOG.md b/packages/oauth/CHANGELOG.md
index c14f28f..8d343a8 100644
--- a/packages/oauth/CHANGELOG.md
+++ b/packages/oauth/CHANGELOG.md
@@ -1,3 +1,13 @@
+## 0.31.3-keycardai-oauth (2026-09-17)
+
+
+- fix(keycardai-oauth): warn once when a TokenVerifier is built without an audience (SDK-4) (#319)
+- TokenVerifier(audience=None) now emits one MissingAudienceWarning at
+construction naming the option to set. Behavior with an audience is
+unchanged; no signature change.
+- Co-authored-by: devin-ai-keycard <devin-ai@keycard.ai>
+Co-authored-by: Larry Osakwe <larry@keycard.ai>
+
 ## 0.31.2-keycardai-oauth (2026-09-15)
 
 ## 0.31.1-keycardai-oauth (2026-09-15)
diff --git a/packages/oauth/pyproject.toml b/packages/oauth/pyproject.toml
index 1e4a566..90edf6a 100644
--- a/packages/oauth/pyproject.toml
+++ b/packages/oauth/pyproject.toml
@@ -118,7 +118,7 @@ dev = [
 
 [tool.commitizen]
 name = "cz_customize"
-version = "0.31.2"
+version = "0.31.3"
 tag_format = "${version}-keycardai-oauth"
 ignored_tag_formats = ["${version}-*"]
 update_changelog_on_bump = true