diff --git a/docker/rpmbuild/Dockerfile.rpmbuild7 b/docker/rpmbuild/Dockerfile.rpmbuild7
index 85abf72..3a4d8a1 100644
--- a/docker/rpmbuild/Dockerfile.rpmbuild7
+++ b/docker/rpmbuild/Dockerfile.rpmbuild7
@@ -9,7 +9,7 @@ RUN yum install -y yum-utils epel-release centos-release-scl-rh && \
 	yum install -y tar wget git tree gcc gcc-c++ \
 		sudo net-tools make cmake zstd libzstd chkconfig \
 		python bash coreutils diffutils patch ca-certificates \
-		rpm-build rpm-devel rpmlint rpmdevtools \
+		rpm-build rpm-devel rpmlint rpmdevtools which procps \
 		devtoolset-9-gcc devtoolset-9-binutils devtoolset-9-runtime \
 		scl-utils asciidoc bison elfutils-libelf-devel m4 newt-devel \
 		openssl-devel openssl xmlto audit-libs-devel binutils-devel elfutils-devel \
diff --git a/docker/rpmbuild/Dockerfile.rpmbuild8 b/docker/rpmbuild/Dockerfile.rpmbuild8
index 4ddac05..f426621 100644
--- a/docker/rpmbuild/Dockerfile.rpmbuild8
+++ b/docker/rpmbuild/Dockerfile.rpmbuild8
@@ -11,7 +11,7 @@ RUN yum install -y yum-utils epel-release && \
 	yum install -y tar wget git tree gcc gcc-c++ \
 		sudo net-tools make cmake zstd libzstd chkconfig \
 		bash coreutils diffutils patch ca-certificates \
-		rpm-build rpm-devel rpmlint rpmdevtools \
+		rpm-build rpm-devel rpmlint rpmdevtools which procps \
 		asciidoc audit-libs-devel binutils-devel flex \
 		libcap-devel newt-devel pciutils-devel perl-generators \
 		python3 python3-devel python3-docutils rsync xmlto bc bison \