diff --git a/.changeset/gold-buses-warn.md b/.changeset/gold-buses-warn.md
new file mode 100644
index 0000000..eaaeb9c
--- /dev/null
+++ b/.changeset/gold-buses-warn.md
@@ -0,0 +1,12 @@
+---
+"@saleor/app-sdk": patch
+---
+
+Added definitions for new sync events for payments:
+
+- `TRANSACTION_CHARGE_REQUESTED`
+- `TRANSACTION_REFUND_REQUESTED`
+- `TRANSACTION_CANCELATION_REQUESTED`
+- `PAYMENT_GATEWAY_INITIALIZE_SESSION`
+- `TRANSACTION_INITIALIZE_SESSION`
+- `TRANSACTION_PROCESS_SESSION`
diff --git a/.github/workflows/assign-pr.yml b/.github/workflows/assign-pr.yml
index 789af0b..68c609e 100644
--- a/.github/workflows/assign-pr.yml
+++ b/.github/workflows/assign-pr.yml
@@ -8,7 +8,7 @@ jobs:
   assign_creator:
     runs-on: ubuntu-latest
     steps:
-    - name: Assign PR to creator
-      uses: thomaseizinger/assign-pr-creator-action@v1.0.0
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
+      - name: Assign PR to creator
+        uses: thomaseizinger/assign-pr-creator-action@v1.0.0
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/docs/debugging.md b/docs/debugging.md
index f09a59b..a3181cb 100644
--- a/docs/debugging.md
+++ b/docs/debugging.md
@@ -46,7 +46,7 @@ localStorage.debug = "*";
 Use the namespace name to enable debug logs for each module.
 
 | Namespace name                | Description                                        |
-|-------------------------------|----------------------------------------------------|
+| ----------------------------- | -------------------------------------------------- |
 | \app-sdk:\*                   | Enable all                                         |
 | app-sdk:AppBridge             | Enable [AppBridge](./app-bridge.md) (browser only) |
 | app-sdk:Middleware:\*         | Enable all middlewares (node only)                 |
diff --git a/package.json b/package.json
index 854040f..d9d79e9 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "test": "vitest",
     "test:ci": "CI=true vitest --coverage --silent",
     "prepare": "husky install",
-    "lint": "prettier --loglevel warn --write . && eslint --fix .",
+    "lint": "tsc --noEmit && prettier --loglevel warn --write . && eslint --fix .",
     "copy-readme": "cp README.md dist/README.md",
     "publish:ci": "pnpm publish && npx changeset tag && git push --follow-tags"
   },
diff --git a/src/handlers/next/saleor-webhooks/saleor-sync-webhook.test.ts b/src/handlers/next/saleor-webhooks/saleor-sync-webhook.test.ts
index fb13431..d3fd19f 100644
--- a/src/handlers/next/saleor-webhooks/saleor-sync-webhook.test.ts
+++ b/src/handlers/next/saleor-webhooks/saleor-sync-webhook.test.ts
@@ -48,13 +48,13 @@ describe("SaleorSyncWebhook", () => {
         ctx.buildResponse({
           lines: [
             {
-              tax_rate: "VAT8",
+              tax_rate: 8,
               total_net_amount: 10,
               total_gross_amount: 1.08,
             },
           ],
           shipping_price_gross_amount: 2,
-          shipping_tax_rate: "VAT8",
+          shipping_tax_rate: 8,
           shipping_price_net_amount: 1,
         })
       );
@@ -66,13 +66,13 @@ describe("SaleorSyncWebhook", () => {
       expect.objectContaining({
         lines: [
           {
-            tax_rate: "VAT8",
+            tax_rate: 8,
             total_net_amount: 10,
             total_gross_amount: 1.08,
           },
         ],
         shipping_price_gross_amount: 2,
-        shipping_tax_rate: "VAT8",
+        shipping_tax_rate: 8,
         shipping_price_net_amount: 1,
       })
     );
diff --git a/src/handlers/next/saleor-webhooks/sync-webhook-response-builder.ts b/src/handlers/next/saleor-webhooks/sync-webhook-response-builder.ts
index 70c6a5e..38d2969 100644
--- a/src/handlers/next/saleor-webhooks/sync-webhook-response-builder.ts
+++ b/src/handlers/next/saleor-webhooks/sync-webhook-response-builder.ts
@@ -29,6 +29,67 @@ export type SyncWebhookResponsesMap = {
      */
     maximum_delivery_days?: number;
   }>;
+  TRANSACTION_CHARGE_REQUESTED: {
+    pspReference: string;
+    result?: "CHARGE_SUCCESS" | "CHARGE_FAILURE";
+    amount?: number;
+    time?: string;
+    externalUrl?: string;
+    message?: string;
+  };
+  TRANSACTION_REFUND_REQUESTED: {
+    pspReference: string;
+    result?: "REFUND_SUCCESS" | "REFUND_FAILURE";
+    amount?: number;
+    time?: string;
+    externalUrl?: string;
+    message?: string;
+  };
+  TRANSACTION_CANCELATION_REQUESTED: {
+    pspReference: string;
+    result?: "CANCEL_SUCCESS" | "CANCEL_FAILURE";
+    amount?: number;
+    time?: string;
+    externalUrl?: string;
+    message?: string;
+  };
+  PAYMENT_GATEWAY_INITIALIZE_SESSION: {
+    data: unknown;
+  };
+  TRANSACTION_INITIALIZE_SESSION: {
+    pspReference?: string;
+    data?: unknown;
+    result:
+      | "CHARGE_SUCCESS"
+      | "CHARGE_FAILURE"
+      | "CHARGE_REQUESTED"
+      | "CHARGE_ACTION_REQUIRED"
+      | "AUTHORIZATION_SUCCESS"
+      | "AUTHORIZATION_FAILURE"
+      | "AUTHORIZATION_REQUESTED"
+      | "AUTHORIZATION_ACTION_REQUIRED";
+    amount: number;
+    time?: string;
+    externalUrl?: string;
+    message?: string;
+  };
+  TRANSACTION_PROCESS_SESSION: {
+    pspReference?: string;
+    data?: unknown;
+    result:
+      | "CHARGE_SUCCESS"
+      | "CHARGE_FAILURE"
+      | "CHARGE_REQUESTED"
+      | "CHARGE_ACTION_REQUIRED"
+      | "AUTHORIZATION_SUCCESS"
+      | "AUTHORIZATION_FAILURE"
+      | "AUTHORIZATION_REQUESTED"
+      | "AUTHORIZATION_ACTION_REQUIRED";
+    amount: number;
+    time?: string;
+    externalUrl?: string;
+    message?: string;
+  };
 };
 
 /**
diff --git a/src/types.ts b/src/types.ts
index 7ba0361..a326748 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -167,14 +167,19 @@ export type AsyncWebhookEventType =
 /**
  * @see https://github.com/saleor/saleor/blob/main/saleor/graphql/schema.graphql#L1995
  *
- * TODO Add Payment events after new API in 3.13
  */
 export type SyncWebhookEventType =
   | "CHECKOUT_CALCULATE_TAXES"
   | "ORDER_CALCULATE_TAXES"
   | "SHIPPING_LIST_METHODS_FOR_CHECKOUT"
   | "CHECKOUT_FILTER_SHIPPING_METHODS"
-  | "ORDER_FILTER_SHIPPING_METHODS";
+  | "ORDER_FILTER_SHIPPING_METHODS"
+  | "TRANSACTION_CHARGE_REQUESTED"
+  | "TRANSACTION_REFUND_REQUESTED"
+  | "TRANSACTION_CANCELATION_REQUESTED"
+  | "PAYMENT_GATEWAY_INITIALIZE_SESSION"
+  | "TRANSACTION_INITIALIZE_SESSION"
+  | "TRANSACTION_PROCESS_SESSION";
 
 export interface AppExtension {
   /** Name which will be displayed in the dashboard */