diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef40340..8504733 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [unreleased]
 
+## [3.1.0]
+
+- Adds an optional `useDynamicSigningKey` to the session refresh (`POST` `/appid-<appId>/recipe/session/refresh`) request body
+
 ## [3.0.5]
 
 - Adds GET `/appid-<appId>/requests/stats` API
diff --git a/api_spec.yaml b/api_spec.yaml
index c7d36ff..34ff123 100644
--- a/api_spec.yaml
+++ b/api_spec.yaml
@@ -5,7 +5,7 @@ info:
 
     `appid-<appId>` and `<tenantId>` in all the APIs are optional. Their default values are `appid-public` and `public` respectively
 
-  version: 3.0.5
+  version: 3.1.0
   title: Core Driver Interface
   contact:
     email: team@supertokens.io
@@ -2756,6 +2756,8 @@ paths:
                   $ref: '#/components/schemas/enableAntiCsrf'
                 antiCsrfToken:
                   $ref: '#/components/schemas/token'
+                useDynamicSigningKey:
+                  type: boolean
               required: [refreshToken, enableAntiCsrf]
       responses:
         '200':