diff --git a/projects/imagemagick/Dockerfile b/projects/imagemagick/Dockerfile
index 5874944a2..54e32f4a3 100644
--- a/projects/imagemagick/Dockerfile
+++ b/projects/imagemagick/Dockerfile
@@ -16,7 +16,7 @@
 
 FROM gcr.io/oss-fuzz-base/base-builder
 RUN apt-get update && \
-    apt-get install -y make autoconf automake libtool pkg-config cmake nasm autopoint po4a libc6:i386 libc6-dev:i386
+    apt-get install -y make autoconf automake groff libtool pkg-config cmake nasm autopoint po4a libc6:i386 libc6-dev:i386
 RUN git clone --depth 1 https://github.com/imagemagick/imagemagick
 RUN git clone --depth 1 https://gitlab.com/libtiff/libtiff
 RUN git clone --depth 1 https://github.com/strukturag/libde265
@@ -30,6 +30,7 @@ RUN git clone --depth 1 https://github.com/xz-mirror/xz
 RUN git clone --depth 1 https://github.com/libraw/libraw
 RUN git clone --depth 1 https://github.com/pnggroup/libpng
 RUN git clone --depth 1 https://github.com/mm2/Little-CMS
+RUN git clone https://www.cl.cam.ac.uk/~mgk25/git/jbigkit # does not support shallow
 RUN svn export https://github.com/mozillasecurity/fuzzdata.git/trunk/samples/heic heic_corpus
 RUN git clone --depth 1 https://gitlab.com/federicomenaquintero/bzip2.git
 ADD https://lcamtuf.coredump.cx/afl/demo/afl_testcases.tgz afl_testcases.tgz