diff --git a/packages/cubejs-cubestore-driver/src/CubeStoreDriver.ts b/packages/cubejs-cubestore-driver/src/CubeStoreDriver.ts
index 780afb77dcb6..37fdfe9d2a24 100644
--- a/packages/cubejs-cubestore-driver/src/CubeStoreDriver.ts
+++ b/packages/cubejs-cubestore-driver/src/CubeStoreDriver.ts
@@ -136,36 +136,32 @@ export class CubeStoreDriver extends BaseDriver {
   }
 
   private async importStream(columns: Column[], tableData: any, table: string, indexes) {
-    try {
-      const writer = csvWriter({ headers: columns.map(c => c.name) });
-      const gzipStream = createGzip();
-
-      await new Promise(
-        (resolve, reject) => pipeline(
-          tableData.rowStream, writer, gzipStream, (err) => (err ? reject(err) : resolve(null))
-        )
-      );
-      const fileName = `${table}.csv.gz`;
-      const res = await fetch(`${this.baseUrl.replace(/^ws/, 'http')}/upload-temp-file?name=${fileName}`, {
-        method: 'POST',
-        body: gzipStream,
-      });
-
-      const createTableSql = this.createTableSql(table, columns);
-      // eslint-disable-next-line no-unused-vars
-      const createTableSqlWithLocation = `${createTableSql} ${indexes} LOCATION ?`;
-
-      if (res.status !== 200) {
-        const err = await res.json();
-        throw new Error(`Error during create table: ${createTableSqlWithLocation}: ${err.error}`);
-      }
-      await this.query(createTableSqlWithLocation, [`temp://${fileName}`]).catch(e => {
-        e.message = `Error during create table: ${createTableSqlWithLocation}: ${e.message}`;
-        throw e;
-      });
-    } finally {
-      await tableData.release();
+    const writer = csvWriter({ headers: columns.map(c => c.name) });
+    const gzipStream = createGzip();
+
+    await new Promise(
+      (resolve, reject) => pipeline(
+        tableData.rowStream, writer, gzipStream, (err) => (err ? reject(err) : resolve(null))
+      )
+    );
+    const fileName = `${table}.csv.gz`;
+    const res = await fetch(`${this.baseUrl.replace(/^ws/, 'http')}/upload-temp-file?name=${fileName}`, {
+      method: 'POST',
+      body: gzipStream,
+    });
+
+    const createTableSql = this.createTableSql(table, columns);
+    // eslint-disable-next-line no-unused-vars
+    const createTableSqlWithLocation = `${createTableSql} ${indexes} LOCATION ?`;
+
+    if (res.status !== 200) {
+      const err = await res.json();
+      throw new Error(`Error during create table: ${createTableSqlWithLocation}: ${err.error}`);
     }
+    await this.query(createTableSqlWithLocation, [`temp://${fileName}`]).catch(e => {
+      e.message = `Error during create table: ${createTableSqlWithLocation}: ${e.message}`;
+      throw e;
+    });
   }
 
   public static dialectClass() {
diff --git a/packages/cubejs-query-orchestrator/src/orchestrator/PreAggregations.ts b/packages/cubejs-query-orchestrator/src/orchestrator/PreAggregations.ts
index 3bc09c4804bb..a4157945af7b 100644
--- a/packages/cubejs-query-orchestrator/src/orchestrator/PreAggregations.ts
+++ b/packages/cubejs-query-orchestrator/src/orchestrator/PreAggregations.ts
@@ -674,7 +674,13 @@ class PreAggregationLoader {
         ...capabilities,
       }
     ));
-    await this.uploadExternalPreAggregation(tableData, newVersionEntry, saveCancelFn);
+    try {
+      await this.uploadExternalPreAggregation(tableData, newVersionEntry, saveCancelFn);
+    } finally {
+      if (tableData.release) {
+        await tableData.release();
+      }
+    }
     await this.loadCache.fetchTables(this.preAggregation);
   }