diff --git a/Dockerfile-ubuntu26-qt6.dockerfile b/Dockerfile-ubuntu26-qt6.dockerfile
index c78d5d1..c05c809 100644
--- a/Dockerfile-ubuntu26-qt6.dockerfile
+++ b/Dockerfile-ubuntu26-qt6.dockerfile
@@ -7,10 +7,10 @@ ARG USERPASS=ctc
 ARG ADMINSRV=10.198.80.75
 ARG PROJECT=guez
 ARG REPOVERSION=26.04
-ARG QT_VERSION=6.8.3
+ARG QT_VERSION=6.10.2
 ARG QT_ARCH=linux_gcc_64
 ARG QT_BASE_DIR=/opt/Qt
-ARG QT_ROOT=/opt/Qt/6.8.3/gcc_64
+ARG QT_ROOT=/opt/Qt/6.10.2/gcc_64
 
 ENV DEBIAN_FRONTEND=noninteractive \
     PYTHONUNBUFFERED=1 \
@@ -73,6 +73,7 @@ RUN apt-get update \
         libpoppler-qt6-dev \
         libboost-dev \
         libgeographiclib-dev \
+        libbotan-3-dev \
         libssl-dev \
         libxml2-dev \
         libicu-dev \
@@ -99,6 +100,11 @@ RUN set -eux; \
         --outputdir "${QT_BASE_DIR}" \
     && test -f "${QT_ROOT}/lib/cmake/Qt6/Qt6Config.cmake"
 
+# ArcGIS Maps SDK for Qt will be mounted at runtime if needed:
+# docker run -v /path/to/ArcGIS:/opt/ArcGIS ...
+# Set ARCGIS_SDK_ROOT for discovery (will be used if mounted)
+ENV ARCGIS_SDK_ROOT=/opt/ArcGIS/MapsSDK_Qt_300.0.0
+
 # Build and install Log4Qt from source (Qt6 support)
 RUN set -eux; \
     cd /tmp && \