diff --git a/roles/copr/backend/files/provision/provision_builder_tasks.yml b/roles/copr/backend/files/provision/provision_builder_tasks.yml
index dd50ad55de..5fc4d477b6 100644
--- a/roles/copr/backend/files/provision/provision_builder_tasks.yml
+++ b/roles/copr/backend/files/provision/provision_builder_tasks.yml
@@ -44,6 +44,9 @@
     - network_name == "coprdev-net"
     - not prepare_base_image
 
+- name: clean dnf cache
+  shell: dnf clean all
+
 - name: make sure newest rpm
   dnf: state=latest pkg={{ item }}
   with_items: