diff --git a/changelogs/fragments/1-koji_db_server-pg15-support.yml b/changelogs/fragments/1-koji_db_server-pg15-support.yml
new file mode 100644
index 0000000..df1709d
--- /dev/null
+++ b/changelogs/fragments/1-koji_db_server-pg15-support.yml
@@ -0,0 +1,3 @@
+---
+bugfixes:
+  - koji_db_server - added PostgreSQL 15 support by granting schema usage and create privileges to Koji user.
diff --git a/roles/koji_db_server/tasks/main.yml b/roles/koji_db_server/tasks/main.yml
index 5930897..82caafc 100644
--- a/roles/koji_db_server/tasks/main.yml
+++ b/roles/koji_db_server/tasks/main.yml
@@ -35,6 +35,24 @@
   become: true
   become_user: postgres
 
+- name: Get PostgreSQL server version
+  community.postgresql.postgresql_info:
+    filter: ver*
+  become: true
+  become_user: postgres
+  register: postgres_version
+
+- name: GRANT USAGE, CREATE PRIVILEGES ON SCHEMA public TO koji_db_server_user
+  community.postgresql.postgresql_privs:
+    db: "{{ koji_db_server_db_name }}"
+    privs: USAGE,CREATE
+    type: schema
+    objs: public
+    role: "{{ koji_db_server_user }}"
+  become: true
+  become_user: postgres
+  when: postgres_version.version.major >= 15
+
 - name: Allow requests from Koji server
   community.postgresql.postgresql_pg_hba:
     dest: /var/lib/pgsql/data/pg_hba.conf
@@ -43,4 +61,10 @@
     users: "{{ koji_db_server_user }}"
     address: "{{ koji_db_server_ip }}/32"
     method: "{{ koji_db_server_password_encryption }}"
-  notify: restart postgresql
+  register: pg_hba_status
+
+- name: Restart PostgreSQL
+  ansible.builtin.service:
+    name: postgresql
+    state: restarted
+  when: pg_hba_status.changed