diff --git a/.github/workflows/build-3ds2.yml b/.github/workflows/build-3ds2.yml
index 81267bf..802f734 100644
--- a/.github/workflows/build-3ds2.yml
+++ b/.github/workflows/build-3ds2.yml
@@ -20,7 +20,7 @@ jobs:
         working-directory: '3ds2-example'
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
     steps:
       - uses: actions/checkout@v3
       - name: Use Node.js ${{ matrix.node-version }}
diff --git a/.github/workflows/build-authorisation-adjustment.yml b/.github/workflows/build-authorisation-adjustment.yml
index 39e459a..f2af675 100644
--- a/.github/workflows/build-authorisation-adjustment.yml
+++ b/.github/workflows/build-authorisation-adjustment.yml
@@ -20,7 +20,7 @@ jobs:
         working-directory: 'authorisation-adjustment-example'
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
diff --git a/.github/workflows/build-checkout-advanced.yml b/.github/workflows/build-checkout-advanced.yml
index ef0d73c..97430c2 100644
--- a/.github/workflows/build-checkout-advanced.yml
+++ b/.github/workflows/build-checkout-advanced.yml
@@ -20,7 +20,7 @@ jobs:
         working-directory: 'checkout-example-advanced'
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
diff --git a/.github/workflows/build-checkout.yml b/.github/workflows/build-checkout.yml
index af02156..e124c6b 100644
--- a/.github/workflows/build-checkout.yml
+++ b/.github/workflows/build-checkout.yml
@@ -20,7 +20,7 @@ jobs:
         working-directory: 'checkout-example'
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
diff --git a/.github/workflows/build-giftcard.yml b/.github/workflows/build-giftcard.yml
index 4a6e4e6..b47e7a1 100644
--- a/.github/workflows/build-giftcard.yml
+++ b/.github/workflows/build-giftcard.yml
@@ -20,7 +20,7 @@ jobs:
         working-directory: 'giftcard-example'
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
diff --git a/.github/workflows/build-giving.yml b/.github/workflows/build-giving.yml
index 345a15c..7af8927 100644
--- a/.github/workflows/build-giving.yml
+++ b/.github/workflows/build-giving.yml
@@ -20,7 +20,7 @@ jobs:
         working-directory: 'giving-example'
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
diff --git a/.github/workflows/build-in-person-payments.yml b/.github/workflows/build-in-person-payments.yml
index 454d86c..b0cdacb 100644
--- a/.github/workflows/build-in-person-payments.yml
+++ b/.github/workflows/build-in-person-payments.yml
@@ -20,7 +20,7 @@ jobs:
         working-directory: 'in-person-payments-example'
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
diff --git a/.github/workflows/build-paybylink.yml b/.github/workflows/build-paybylink.yml
index b23a77a..d1e6118 100644
--- a/.github/workflows/build-paybylink.yml
+++ b/.github/workflows/build-paybylink.yml
@@ -20,7 +20,7 @@ jobs:
         working-directory: 'paybylink-example'
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
diff --git a/.github/workflows/build-subscription.yml b/.github/workflows/build-subscription.yml
index 2a12593..264006b 100644
--- a/.github/workflows/build-subscription.yml
+++ b/.github/workflows/build-subscription.yml
@@ -20,7 +20,7 @@ jobs:
         working-directory: 'subscription-example'
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
diff --git a/.tool-versions b/.tool-versions
new file mode 100644
index 0000000..7bd5f0b
--- /dev/null
+++ b/.tool-versions
@@ -0,0 +1 @@
+nodejs 20.10.0
diff --git a/3ds2-example/README.md b/3ds2-example/README.md
index fdc97c9..f752e9f 100644
--- a/3ds2-example/README.md
+++ b/3ds2-example/README.md
@@ -11,7 +11,7 @@ For additional information, refer to our [documentation on testing 3DS2](https:/
 
 ## Prerequisites
 
-- Node.js 18+
+- Node.js 20+
 
 This demo leverages Adyen's API Library for Node.js ([GitHub](https://github.com/Adyen/adyen-node-api-library) | [Docs](https://docs.adyen.com/development-resources/libraries#javascript)).
 
diff --git a/authorisation-adjustment-example/Dockerfile b/authorisation-adjustment-example/Dockerfile
index 2af3f8f..3d993a7 100644
--- a/authorisation-adjustment-example/Dockerfile
+++ b/authorisation-adjustment-example/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16-alpine
+FROM node:20-alpine
 
 WORKDIR /app
 
diff --git a/authorisation-adjustment-example/README.md b/authorisation-adjustment-example/README.md
index 0b49374..7c692ba 100644
--- a/authorisation-adjustment-example/README.md
+++ b/authorisation-adjustment-example/README.md
@@ -21,7 +21,7 @@ This demo leverages Adyen's API Library for Node.js ([GitHub](https://github.com
 ## Requirements
 
 - [Adyen API Credentials](https://docs.adyen.com/development-resources/api-credentials/)
-- Node.js 18+
+- Node.js 20+
 
 ## Installation
 
diff --git a/checkout-example-advanced/Dockerfile b/checkout-example-advanced/Dockerfile
index 2af3f8f..3d993a7 100644
--- a/checkout-example-advanced/Dockerfile
+++ b/checkout-example-advanced/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16-alpine
+FROM node:20-alpine
 
 WORKDIR /app
 
diff --git a/checkout-example-advanced/README.md b/checkout-example-advanced/README.md
index 0aa72af..950b37c 100644
--- a/checkout-example-advanced/README.md
+++ b/checkout-example-advanced/README.md
@@ -23,7 +23,7 @@ For a simpler flow using `/sessions`, check out the demo in the [`checkout-examp
 ## Requirements
 
 - [Adyen API Credentials](https://docs.adyen.com/development-resources/api-credentials/)
-- Node.js 18+
+- Node.js 20+
 
 ## 1. Installation
 
diff --git a/checkout-example/Dockerfile b/checkout-example/Dockerfile
index 2af3f8f..3d993a7 100644
--- a/checkout-example/Dockerfile
+++ b/checkout-example/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16-alpine
+FROM node:20-alpine
 
 WORKDIR /app
 
diff --git a/checkout-example/README.md b/checkout-example/README.md
index 99baf51..a190d27 100644
--- a/checkout-example/README.md
+++ b/checkout-example/README.md
@@ -23,7 +23,7 @@ For a three-steps [advanced use case](https://docs.adyen.com/online-payments/bui
 ## Requirements
 
 - [Adyen API Credentials](https://docs.adyen.com/development-resources/api-credentials/)
-- Node.js 18+
+- Node.js 20+
 
 ## 1. Installation
 
diff --git a/giftcard-example/Dockerfile b/giftcard-example/Dockerfile
index 2af3f8f..3d993a7 100644
--- a/giftcard-example/Dockerfile
+++ b/giftcard-example/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16-alpine
+FROM node:20-alpine
 
 WORKDIR /app
 
diff --git a/giftcard-example/README.md b/giftcard-example/README.md
index acb39b0..c95546c 100644
--- a/giftcard-example/README.md
+++ b/giftcard-example/README.md
@@ -52,7 +52,7 @@ This demo provides a simple webhook integration at `/api/webhooks/notifications`
 
 
 ## Run integration on localhost using a proxy
-You will need Node.js 18+ to run this application locally.
+You will need Node.js 20+ to run this application locally.
 
 1. Clone this repository
 
diff --git a/giving-example/Dockerfile b/giving-example/Dockerfile
index 2af3f8f..3d993a7 100644
--- a/giving-example/Dockerfile
+++ b/giving-example/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16-alpine
+FROM node:20-alpine
 
 WORKDIR /app
 
diff --git a/giving-example/README.md b/giving-example/README.md
index da75aaa..abce28d 100644
--- a/giving-example/README.md
+++ b/giving-example/README.md
@@ -29,7 +29,7 @@ This demo leverages Adyen's API Library for Node.js ([GitHub](https://github.com
 
 ## Requirements
 
-Node.js 18+
+Node.js 20+
 
 ## Installation
 
diff --git a/in-person-payments-example/Dockerfile b/in-person-payments-example/Dockerfile
index 2af3f8f..3d993a7 100644
--- a/in-person-payments-example/Dockerfile
+++ b/in-person-payments-example/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16-alpine
+FROM node:20-alpine
 
 WORKDIR /app
 
diff --git a/in-person-payments-example/README.md b/in-person-payments-example/README.md
index ff4bb25..8b9e25a 100644
--- a/in-person-payments-example/README.md
+++ b/in-person-payments-example/README.md
@@ -28,7 +28,7 @@ This demo integrates the Adyen's API Library for Node.js ([GitHub](https://githu
 ## Prerequisites
 - A [terminal device](https://docs.adyen.com/point-of-sale/user-manuals/) and a [test card](https://docs.adyen.com/point-of-sale/testing-pos-payments/) from Adyen
 - [Adyen API Credentials](https://docs.adyen.com/development-resources/api-credentials/)
-- Node.js 18+
+- Node.js 20+
 
 ## 1. Installation
 
diff --git a/paybylink-example/Dockerfile b/paybylink-example/Dockerfile
index 2af3f8f..3d993a7 100644
--- a/paybylink-example/Dockerfile
+++ b/paybylink-example/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16-alpine
+FROM node:20-alpine
 
 WORKDIR /app
 
diff --git a/paybylink-example/README.md b/paybylink-example/README.md
index d37edd1..60adc74 100644
--- a/paybylink-example/README.md
+++ b/paybylink-example/README.md
@@ -19,7 +19,7 @@ This demo leverages Adyen's API Library for Node.js ([GitHub](https://github.com
 ## Requirements
 
 - [Adyen API Credentials](https://docs.adyen.com/development-resources/api-credentials/)
-- Node.js 18+
+- Node.js 20+
 
 ## 1. Installation
 
diff --git a/subscription-example/Dockerfile b/subscription-example/Dockerfile
index 2af3f8f..3d993a7 100644
--- a/subscription-example/Dockerfile
+++ b/subscription-example/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16-alpine
+FROM node:20-alpine
 
 WORKDIR /app
 
diff --git a/subscription-example/README.md b/subscription-example/README.md
index 489e345..f1d207c 100644
--- a/subscription-example/README.md
+++ b/subscription-example/README.md
@@ -67,7 +67,7 @@ This demo provides a simple webhook integration at `/api/webhooks/notifications`
 
 
 ## Run integration on localhost using a proxy
-You will need Node.js 18+ to run this application locally.
+You will need Node.js 20+ to run this application locally.
 
 1. Clone this repository.