diff --git a/Dockerfile b/Dockerfile
index 6f9af23..caeca6a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,10 +9,10 @@ LABEL org.opencontainers.image.revision="v0.0.1"
 ARG DEBIAN_FRONTEND=noninteractive
 ARG JAVA_VERSION=17
 ARG PRINCE_VERSION=15.1
-ARG SAXON_VERSION=SaxonHE11-5
+ARG SAXON_VERSION=SaxonHE12-4
 ARG TARGETARCH
 ARG UBUNTU_VERSION=22.04
-ARG XERCES_VERSION=25.1.0.1
+ARG XERCES_VERSION=26.1.0.1
 ARG DEB_FILE=prince_${PRINCE_VERSION}-1_ubuntu${UBUNTU_VERSION}_${TARGETARCH}.deb
 
 ENV TZ=Europe/Berlin