diff --git a/.github/workflows/budibase_ci.yml b/.github/workflows/budibase_ci.yml
index 5eea636b5d..e2f000cf7e 100644
--- a/.github/workflows/budibase_ci.yml
+++ b/.github/workflows/budibase_ci.yml
@@ -190,6 +190,8 @@ jobs:
             docker pull mariadb@${{ steps.dotenv.outputs.MARIADB_SHA }}
           elif [ "${{ matrix.datasource }}" == "oracle" ]; then
             docker pull budibase/oracle-database:23.2-slim-faststart
+          elif [ "${{ matrix.datasource }}" == "postgres_legacy" ]; then
+            docker pull postgres:9.5.25
           fi
           docker pull minio/minio &
           docker pull redis &
diff --git a/packages/server/src/api/routes/tests/datasource.spec.ts b/packages/server/src/api/routes/tests/datasource.spec.ts
index 514ed02c86..babb44b329 100644
--- a/packages/server/src/api/routes/tests/datasource.spec.ts
+++ b/packages/server/src/api/routes/tests/datasource.spec.ts
@@ -590,13 +590,13 @@ if (descriptions.length) {
 }
 
 const datasources = datasourceDescribe({
-  exclude: [DatabaseName.MONGODB, DatabaseName.SQS, DatabaseName.ORACLE],
+  only: [DatabaseName.POSTGRES_LEGACY],
 })
 
 if (datasources.length) {
   describe.each(datasources)(
     "$dbName",
-    ({ config, dsProvider, isPostgres, isMySQL, isMariaDB }) => {
+    ({ config, dsProvider, isPostgres, isLegacy, isMySQL, isMariaDB }) => {
       let datasource: Datasource
       let client: Knex
 
@@ -647,6 +647,13 @@ if (datasources.length) {
             // can load it. We're using postgres 16 in tests at the time of writing.
             schema = schema.replace("SET transaction_timeout = 0;", "")
           }
+          if (isPostgres && isLegacy) {
+            // in older versions of Postgres, this is not a valid option - Postgres 9.5 does not support this.
+            schema = schema.replace(
+              "SET idle_in_transaction_session_timeout = 0;",
+              ""
+            )
+          }
 
           await config.api.table.destroy(table._id!, table._rev!)
 
diff --git a/packages/server/src/integrations/tests/utils/index.ts b/packages/server/src/integrations/tests/utils/index.ts
index 00aff70b13..9e2c4f7e70 100644
--- a/packages/server/src/integrations/tests/utils/index.ts
+++ b/packages/server/src/integrations/tests/utils/index.ts
@@ -147,7 +147,11 @@ export function datasourceDescribe(opts: DatasourceDescribeOpts) {
       DatabaseName.ORACLE,
     ].includes(dbName),
     isMySQL: dbName === DatabaseName.MYSQL,
-    isPostgres: dbName === DatabaseName.POSTGRES,
+    isPostgres:
+      dbName === DatabaseName.POSTGRES ||
+      dbName === DatabaseName.POSTGRES_LEGACY,
+    // check if any of the legacy tags
+    isLegacy: dbName === DatabaseName.POSTGRES_LEGACY,
     isMongodb: dbName === DatabaseName.MONGODB,
     isMSSQL: dbName === DatabaseName.SQL_SERVER,
     isOracle: dbName === DatabaseName.ORACLE,