diff --git a/.clusterfuzzlite/Dockerfile b/.clusterfuzzlite/Dockerfile
index d3f2293..9ebf782 100644
--- a/.clusterfuzzlite/Dockerfile
+++ b/.clusterfuzzlite/Dockerfile
@@ -1,6 +1,13 @@
 FROM gcr.io/oss-fuzz-base/base-builder
-RUN apt-get update && apt-get install -y make autoconf automake libtool
+RUN apt-get update && apt-get install -y --no-install-recommends make autoconf automake libtool
 
 COPY . $SRC/json_struct
 COPY .clusterfuzzlite/build.sh $SRC/build.sh
-WORKDIR $SRC/json_struct
\ No newline at end of file
+WORKDIR $SRC/json_struct
+
+RUN groupadd -r user && \
+    useradd -r -g user -m -d /home/user -s /bin/bash user
+
+USER user
+
+HEALTHCHECK --interval=5m --timeout=3s \