diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 15336e2..a66030f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,7 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [16.x]
+        node-version: [20.x]
     steps:
     - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
diff --git a/.tool-versions b/.tool-versions
index 8abaea2..7bd5f0b 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1 +1 @@
-nodejs 16.14.0
+nodejs 20.10.0
diff --git a/Dockerfile b/Dockerfile
index 722ef7c..e855974 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16
+FROM node:20-alpine
 
 COPY . .
 
diff --git a/README.md b/README.md
index cc37853..2f69db8 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ The demo leverages Adyen's API Library for Node.js ([GitHub](https://github.com/
 
 ## Requirements
 
-Node.js 12+
+Node.js 20+
 
 ## Installation