diff --git a/client-bob/Dockerfile b/client-bob/Dockerfile
index 309c726..f4f5ecf 100644
--- a/client-bob/Dockerfile
+++ b/client-bob/Dockerfile
@@ -1,4 +1,4 @@
-FROM openjdk:8-jdk-alpine
+FROM openjdk:17-jdk-alpine
 
 MAINTAINER Jonas Hecht
 
diff --git a/server-alice/Dockerfile b/server-alice/Dockerfile
index 57a639d..fb00825 100644
--- a/server-alice/Dockerfile
+++ b/server-alice/Dockerfile
@@ -1,4 +1,4 @@
-FROM openjdk:8-jdk-alpine
+FROM openjdk:17-jdk-alpine
 
 MAINTAINER Jonas Hecht
 
diff --git a/server-tom/Dockerfile b/server-tom/Dockerfile
index dd9adbf..36f79d5 100644
--- a/server-tom/Dockerfile
+++ b/server-tom/Dockerfile
@@ -1,4 +1,4 @@
-FROM openjdk:8-jdk-alpine
+FROM openjdk:17-jdk-alpine
 
 MAINTAINER Jonas Hecht