diff --git a/README.md b/README.md
index a81bcd9b..46b91735 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 
 Prometheus exporter for PostgreSQL server metrics.
 
-CI Tested PostgreSQL versions: `9.4`, `9.5`, `9.6`, `10`, `11`
+CI Tested PostgreSQL versions: `9.4`, `9.5`, `9.6`, `10`, `11`, `12`
 
 ## Quick Start
 This package is available for Docker:
diff --git a/cmd/postgres_exporter/tests/test-smoke b/cmd/postgres_exporter/tests/test-smoke
index 4062e235..d4da08bb 100755
--- a/cmd/postgres_exporter/tests/test-smoke
+++ b/cmd/postgres_exporter/tests/test-smoke
@@ -31,6 +31,7 @@ VERSIONS=( \
     9.6 \
     10 \
     11 \
+    12 \
 )
 
 wait_for_postgres(){