diff --git a/packages/backend/server/migrations/20250429113337_workspace_file_blob_id/migration.sql b/packages/backend/server/migrations/20250429113337_workspace_file_blob_id/migration.sql
index fe6de86cca..a7c779f11b 100644
--- a/packages/backend/server/migrations/20250429113337_workspace_file_blob_id/migration.sql
+++ b/packages/backend/server/migrations/20250429113337_workspace_file_blob_id/migration.sql
@@ -1,2 +1,9 @@
--- AlterTable
-ALTER TABLE "ai_workspace_files" ADD COLUMN     "blob_id" VARCHAR NOT NULL DEFAULT '';
+DO $$
+    BEGIN
+        IF EXISTS (SELECT 1 FROM pg_tables WHERE tablename = 'ai_workspace_files') THEN
+            -- AlterTable
+            ALTER TABLE "ai_workspace_files"
+                ADD COLUMN "blob_id" VARCHAR NOT NULL DEFAULT '';
+        END IF;
+    END
+$$;
\ No newline at end of file
diff --git a/packages/backend/server/migrations/20250521083048_fix_workspace_embedding_chunk_primary_key/migration.sql b/packages/backend/server/migrations/20250521083048_fix_workspace_embedding_chunk_primary_key/migration.sql
index 99277903bc..ae1dbc361d 100644
--- a/packages/backend/server/migrations/20250521083048_fix_workspace_embedding_chunk_primary_key/migration.sql
+++ b/packages/backend/server/migrations/20250521083048_fix_workspace_embedding_chunk_primary_key/migration.sql
@@ -5,16 +5,25 @@
   - The primary key for the `ai_workspace_file_embeddings` table will be changed. If it partially fails, the table could be left without primary key constraint.
 
 */
--- DropIndex
-DROP INDEX "ai_workspace_embeddings_workspace_id_doc_id_chunk_key";
+DO $$
+    BEGIN
+        IF EXISTS (SELECT 1 FROM pg_tables WHERE tablename = 'ai_workspace_embeddings') AND
+           EXISTS (SELECT 1 FROM pg_tables WHERE tablename = 'ai_workspace_file_embeddings') THEN
+            -- DropIndex
+            DROP INDEX "ai_workspace_embeddings_workspace_id_doc_id_chunk_key";
 
--- DropIndex
-DROP INDEX "ai_workspace_file_embeddings_workspace_id_file_id_chunk_key";
+            -- DropIndex
+            DROP INDEX "ai_workspace_file_embeddings_workspace_id_file_id_chunk_key";
 
--- AlterTable
-ALTER TABLE "ai_workspace_embeddings" DROP CONSTRAINT "ai_workspace_embeddings_pkey",
-ADD CONSTRAINT "ai_workspace_embeddings_pkey" PRIMARY KEY ("workspace_id", "doc_id", "chunk");
+            -- AlterTable
+            ALTER TABLE "ai_workspace_embeddings"
+                DROP CONSTRAINT "ai_workspace_embeddings_pkey",
+                ADD CONSTRAINT "ai_workspace_embeddings_pkey" PRIMARY KEY ("workspace_id", "doc_id", "chunk");
 
--- AlterTable
-ALTER TABLE "ai_workspace_file_embeddings" DROP CONSTRAINT "ai_workspace_file_embeddings_pkey",
-ADD CONSTRAINT "ai_workspace_file_embeddings_pkey" PRIMARY KEY ("workspace_id", "file_id", "chunk");
+            -- AlterTable
+            ALTER TABLE "ai_workspace_file_embeddings"
+                DROP CONSTRAINT "ai_workspace_file_embeddings_pkey",
+                ADD CONSTRAINT "ai_workspace_file_embeddings_pkey" PRIMARY KEY ("workspace_id", "file_id", "chunk");
+        END IF;
+    END
+$$;