diff --git a/roles/postgres/defaults/main.yml b/roles/postgres/defaults/main.yml
deleted file mode 100644
index c581283..0000000
--- a/roles/postgres/defaults/main.yml
+++ /dev/null
@@ -1,3 +0,0 @@
----
-
-pg_version: "{% if ansible_facts['os_family'] == 'Debian' and ansible_facts['distribution_major_version'] == '9' %}9.6{% elif ansible_facts['os_family'] == 'Debian' and ansible_facts['distribution_major_version'] == '10' %}11{% elif ansible_facts['os_family'] == 'Debian' and ansible_facts['distribution_major_version'] == '11' %}13{% endif %}"
diff --git a/roles/postgres/vars/main.yml b/roles/postgres/vars/main.yml
new file mode 100644
index 0000000..26eb02c
--- /dev/null
+++ b/roles/postgres/vars/main.yml
@@ -0,0 +1,10 @@
+---
+
+pg_versions:
+  Debian:
+    "9": 9.6
+    "10": 11
+    "11": 13
+    "12": 15
+
+pg_version: "{{ pg_versions[ansible_os_family][ansible_distribution_major_version] }}"