diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 884719d..a8b8aa8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,8 +1,6 @@
 name: Build project with Maven
 on:
   pull_request:
-  schedule:
-  - cron: '2 2 * * 1-5' # run nightly master builds on weekdays
 
 jobs:
   build:
@@ -13,7 +11,7 @@ jobs:
     - name: Java setup
       uses: actions/setup-java@e54a62b3df9364d4b4c1c29c7225e57fe605d7dd # pin@v1
       with:
-        java-version: 11
+        java-version: 17
     - name: Cache
       uses: actions/cache@99d99cd262b87f5f8671407a1e5c1ddfa36ad5ba # pin@v1
       with:
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 2142499..cfde97a 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -25,7 +25,7 @@ jobs:
     - name: Set up Java environment
       uses: actions/setup-java@e54a62b3df9364d4b4c1c29c7225e57fe605d7dd # pin@v1
       with:
-        java-version: 11
+        java-version: 17
         gpg-private-key: ${{ secrets.MAVEN_CENTRAL_GPG_SIGNING_KEY_SEC }}
         gpg-passphrase: MAVEN_CENTRAL_GPG_PASSPHRASE
     - name: Login to Docker
diff --git a/pom.xml b/pom.xml
index 3e5defd..eac7975 100644
--- a/pom.xml
+++ b/pom.xml
@@ -24,7 +24,7 @@
         <version.kotlin>1.8.21</version.kotlin>
 
         <version.spring.boot>3.1.5</version.spring.boot>
-        <version.java>11</version.java>
+        <version.java>17</version.java>
         <java.version>${version.java}</java.version>
 
         <maven.compiler.source>${java.version}</maven.compiler.source>