diff --git a/docker/blocks/mysql_tests/docker-compose.yaml b/docker/blocks/mysql_tests/docker-compose.yaml
index 646cc7ee369..c6c3097d463 100644
--- a/docker/blocks/mysql_tests/docker-compose.yaml
+++ b/docker/blocks/mysql_tests/docker-compose.yaml
@@ -7,3 +7,4 @@
       MYSQL_PASSWORD: password
     ports:
       - "3306:3306"
+    tmpfs: /var/lib/mysql:rw
diff --git a/docker/blocks/postgres_tests/docker-compose.yaml b/docker/blocks/postgres_tests/docker-compose.yaml
index 3d9a82c034c..44b66e8e558 100644
--- a/docker/blocks/postgres_tests/docker-compose.yaml
+++ b/docker/blocks/postgres_tests/docker-compose.yaml
@@ -5,3 +5,4 @@
       POSTGRES_PASSWORD: grafanatest
     ports:
       - "5432:5432"
+    tmpfs: /var/lib/postgresql/data:rw
\ No newline at end of file