diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..1584aa5
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "PlotFS"]
+	path = PlotFS
+	url = https://github.com/benengele/PlotFS.git
+        update = rebase
diff --git a/Dockerfile b/Dockerfile
index c6bef6e..6122bdd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ RUN \
    apk --no-cache --repository http://dl-cdn.alpinelinux.org/alpine/v3.16/community add fuse3-dev flatbuffers-dev
 
 WORKDIR /build
-RUN git clone https://github.com/szatmary/PlotFS.git
+COPY PlotFS PlotFS
 RUN cd PlotFS && cmake . && make && make install
 
 FROM alpine:3.16
diff --git a/PlotFS b/PlotFS
new file mode 160000
index 0000000..29c4379
--- /dev/null
+++ b/PlotFS
@@ -0,0 +1 @@
+Subproject commit 29c43795e9fcee236e9351db9db6441e5c31f6e6