diff --git a/images/pulp-minimal/stable/Containerfile.core b/images/pulp-minimal/stable/Containerfile.core
index 7e510ae2..bd81f68c 100644
--- a/images/pulp-minimal/stable/Containerfile.core
+++ b/images/pulp-minimal/stable/Containerfile.core
@@ -1,7 +1,7 @@
 ARG FROM_TAG="latest"
 FROM pulp/base:${FROM_TAG}
 
-ARG PULPCORE_VERSION=""
+ARG PULPCORE_VERSION="~=3.28.0"
 ARG PULP_ANSIBLE_VERSION=""
 ARG PULP_CERTGUARD_VERSION=""
 ARG PULP_CONTAINER_VERSION=""
diff --git a/images/pulp/stable/Containerfile b/images/pulp/stable/Containerfile
index ab938eed..d5a4eb58 100644
--- a/images/pulp/stable/Containerfile
+++ b/images/pulp/stable/Containerfile
@@ -1,7 +1,7 @@
 ARG FROM_TAG="latest"
 FROM pulp/pulp-ci-centos:${FROM_TAG}
 
-ARG PULPCORE_VERSION=""
+ARG PULPCORE_VERSION="~=3.28.0"
 ARG PULP_ANSIBLE_VERSION=""
 ARG PULP_CERTGUARD_VERSION=""
 ARG PULP_CONTAINER_VERSION=""