diff --git a/control_plane/roles/provision_cobbler/files/Dockerfile_rocky b/control_plane/roles/provision_cobbler/files/Dockerfile_rocky
index 5fb204511..12678e70d 100644
--- a/control_plane/roles/provision_cobbler/files/Dockerfile_rocky
+++ b/control_plane/roles/provision_cobbler/files/Dockerfile_rocky
@@ -35,6 +35,8 @@ RUN dnf install -y mod_ssl \
         && dnf clean all \
         &&  rm -rf /var/cache/dnf
 
+RUN pip3.8 install netaddr
+RUN ansible-galaxy collection install ansible.utils:2.5.2
 RUN yum install -y  grub2-efi-x64 shim-x64
 RUN yum install -y yum-utils
 RUN dnf config-manager --set-enabled powertools
@@ -61,4 +63,4 @@ VOLUME [ "/var/www/cobbler", "/var/lib/cobbler/backup", "/mnt" ]
 
 RUN systemctl enable dhcpd
 
-CMD ["sbin/init"]
+CMD ["sbin/init"]
\ No newline at end of file
diff --git a/control_plane/roles/provision_cobbler/files/inventory_creation.yml b/control_plane/roles/provision_cobbler/files/inventory_creation.yml
index f4667efae..6ad0e5b48 100644
--- a/control_plane/roles/provision_cobbler/files/inventory_creation.yml
+++ b/control_plane/roles/provision_cobbler/files/inventory_creation.yml
@@ -29,7 +29,7 @@
 
     - name: Filter the ip
       set_fact:
-        vars_new: "{{ var | ipv4('address') | to_nice_yaml}}"
+        vars_new: "{{ var | ansible.utils.ipv4('address') | to_nice_yaml}}"
 
     - name: Create the static ip
       shell: awk -F',' 'NR >1{print $3}' omnia/control_plane/roles/provision_cobbler/files/new_host_mapping_file.csv > static_hosts.yml