diff --git a/dockerfiles/al9.dockerfile b/dockerfiles/al9.dockerfile
index f6bc9a7..09eec97 100644
--- a/dockerfiles/al9.dockerfile
+++ b/dockerfiles/al9.dockerfile
@@ -11,7 +11,7 @@ RUN yum clean all \
 RUN yum -y install git python3-yaml glibc-devel \
  gcc gcc-c++ gcc-fortran libgcc \
  wget tar zip rsync patch lbzip2 texinfo file \
- libunwind-devel which \
+ libunwind-devel which keyutils \
  && yum clean all
 
 ENTRYPOINT ["/bin/bash"]
diff --git a/dockerfiles/alma9-minimal.dockerfile b/dockerfiles/alma9-minimal.dockerfile
index b6fba18..546a4ff 100644
--- a/dockerfiles/alma9-minimal.dockerfile
+++ b/dockerfiles/alma9-minimal.dockerfile
@@ -25,7 +25,7 @@ RUN yum clean all \
 RUN yum clean all \
  && yum -y install \
     texinfo patch libbsd-devel \
-    libnsl2 \
+    libnsl2 keyutils \
  && yum clean all
  
 RUN mkdir -p /dunedaq/run && chmod go+rw /dunedaq/run