diff --git a/builder/Dockerfile b/builder/Dockerfile
index 4b01925..d12028e 100644
--- a/builder/Dockerfile
+++ b/builder/Dockerfile
@@ -1,4 +1,4 @@
-FROM alt:pre-builder AS building
+FROM registry.git.peresvet.it/system-trace/agent-enviroments:pre-builder AS building
 
 WORKDIR /prepare
 COPY /libs .
@@ -21,7 +21,7 @@ RUN cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -G Ninja -S /prepare/fmt/ -B /prepar
 
 # ———————————————————————————————————————————————————————————————————
 
-FROM alt:pre-builder
+FROM registry.git.peresvet.it/system-trace/agent-enviroments:pre-builder
 COPY --from=building /prepare/installed/ /prepare/build/seastar/release/_cooking/stow/dpdk/ /usr/local/
 
 CMD ["/bin/bash"]