diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index fabe54421..0d081b091 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -17,12 +17,12 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up JDK 11
+    - name: Set up JDK 17
       uses: actions/setup-java@v2
       with:
         distribution: zulu
-        java-version: '11'
-    - uses: actions/cache@v2
+        java-version: '17'
+    - uses: actions/cache@v3
       with:
         path: |
           ~/.gradle/caches
diff --git a/README.md b/README.md
index c747c5757..16f3c29bb 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ It uses a ~~H2 in-memory database~~ sqlite database (for easy local test without
 
 # Getting started
 
-You'll need Java 11 installed.
+You'll need Java 17 installed.
 
     ./gradlew bootRun
 
diff --git a/build.gradle b/build.gradle
index da384dc69..e14f666c1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,8 +7,8 @@ plugins {
 }
 
 version = '0.0.1-SNAPSHOT'
-sourceCompatibility = '11'
-targetCompatibility = '11'
+sourceCompatibility = '17'
+targetCompatibility = '17'
 
 spotless {
     java {