diff --git a/lib/poloniex.mjs b/lib/poloniex.mjs
index b781ac4..6f2aefe 100644
--- a/lib/poloniex.mjs
+++ b/lib/poloniex.mjs
@@ -880,7 +880,7 @@ export default class Poloniex {
    */
   cancelOrder(requestParameters) {
     const path = `/orders/${requestParameters.id}`
-    return this.#requestAuth('del', path, {}, {}, requestParameters?.getApiCallRateInfo)
+    return this.#requestAuth('DELETE', path, {}, {}, requestParameters?.getApiCallRateInfo)
   }
 
   /**
@@ -895,7 +895,7 @@ export default class Poloniex {
   cancelBatchOrders(requestParameters) {
     const path = '/orders/cancelByIds'
     const body = Poloniex.#cloneObjectExceptKeys(requestParameters, ['getApiCallRateInfo'])
-    return this.#requestAuth('del', path, {}, body, requestParameters?.getApiCallRateInfo)
+    return this.#requestAuth('DELETE', path, {}, body, requestParameters?.getApiCallRateInfo)
   }
 
   /**
@@ -911,7 +911,7 @@ export default class Poloniex {
   cancelAllOrders(requestParameters) {
     const path = '/orders'
     const body = Poloniex.#cloneObjectExceptKeys(requestParameters, ['getApiCallRateInfo'])
-    return this.#requestAuth('del', path, {}, body, requestParameters?.getApiCallRateInfo)
+    return this.#requestAuth('DELETE', path, {}, body, requestParameters?.getApiCallRateInfo)
   }
 
   /**
@@ -1022,7 +1022,7 @@ export default class Poloniex {
    */
   cancelSmartOrder(requestParameters) {
     const path = `/smartorders/${requestParameters.id}`
-    return this.#requestAuth('del', path, {}, {}, requestParameters?.getApiCallRateInfo)
+    return this.#requestAuth('DELETE', path, {}, {}, requestParameters?.getApiCallRateInfo)
   }
 
   /**
@@ -1038,7 +1038,7 @@ export default class Poloniex {
   cancelBatchSmartOrders(requestParameters) {
     const path = '/smartorders/cancelByIds'
     const body = Poloniex.#cloneObjectExceptKeys(requestParameters, ['getApiCallRateInfo'])
-    return this.#requestAuth('del', path, {}, body, requestParameters?.getApiCallRateInfo)
+    return this.#requestAuth('DELETE', path, {}, body, requestParameters?.getApiCallRateInfo)
   }
 
   /**
@@ -1054,7 +1054,7 @@ export default class Poloniex {
   cancelAllSmartOrders(requestParameters) {
     const path = '/smartorders'
     const body = Poloniex.#cloneObjectExceptKeys(requestParameters, ['getApiCallRateInfo'])
-    return this.#requestAuth('del', path, {}, body, requestParameters?.getApiCallRateInfo)
+    return this.#requestAuth('DELETE', path, {}, body, requestParameters?.getApiCallRateInfo)
   }
 
   /**
diff --git a/package.json b/package.json
index 335c0b7..892723f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "poloniex-api-node",
-  "version": "3.1.2",
+  "version": "3.1.3",
   "description": "Simple node.js wrapper for Poloniex REST and WebSocket API.",
   "type": "module",
   "main": "./dist/cjs/poloniex.cjs",