diff --git a/docs/docs/Develop/configuration-custom-database.mdx b/docs/docs/Develop/configuration-custom-database.mdx
index 581d47f060..5ac46ccad0 100644
--- a/docs/docs/Develop/configuration-custom-database.mdx
+++ b/docs/docs/Develop/configuration-custom-database.mdx
@@ -13,7 +13,7 @@ Langflow can more efficiently handle multiple users and larger workloads by usin
 
 ## Prerequisites
 
-- A [PostgreSQL](https://www.pgadmin.org/download/) database
+- A [PostgreSQL](https://www.pgadmin.org/download/) database version 15 or later
 
 ## Connect Langflow to a local PostgreSQL database
 
diff --git a/docs/docs/Develop/enterprise-database-guide.mdx b/docs/docs/Develop/enterprise-database-guide.mdx
index d9f22a8eca..071063b945 100644
--- a/docs/docs/Develop/enterprise-database-guide.mdx
+++ b/docs/docs/Develop/enterprise-database-guide.mdx
@@ -23,7 +23,7 @@ For more information, see [Configure an external PostgreSQL database](/configura
 
 1. Set up PostgreSQL:
 
-   1. Deploy a PostgreSQL instance (version 12 or higher recommended) using a local server, Docker, or a managed cloud service.
+   1. Deploy a PostgreSQL instance (version 15 or later) using a local server, Docker, or a managed cloud service.
    2. Create a database for Langflow.
    3. Create a PostgreSQL user with appropriate, minimal permissions to manage and write to the database, such as CREATE, SELECT, INSERT, UPDATE, DELETE on your Langflow tables.
 
diff --git a/docs/docs/Support/troubleshooting.mdx b/docs/docs/Support/troubleshooting.mdx
index e613203a75..3b3c76dba3 100644
--- a/docs/docs/Support/troubleshooting.mdx
+++ b/docs/docs/Support/troubleshooting.mdx
@@ -169,6 +169,21 @@ This error occurs because `asyncpg` has stricter timezone handling than `psycopg
 
 To resolve this issue, remove `asyncpg` from your installation and use `psycopg2` instead.
 
+### PostgreSQL version mismatch: `UNIQUE NULLS DISTINCT` syntax error
+
+The following error can occur when initializing Langflow with a PostgreSQL database:
+
+```text
+(psycopg.errors.SyntaxError) syntax error at or near "NULLS"
+LINE 13:  CONSTRAINT file_name_user_id_key UNIQUE NULLS DISTINCT (nam...
+```
+
+This occurs when you're using a PostgreSQL version prior to version 15.
+These versions don't support the `UNIQUE NULLS DISTINCT` syntax used by Langflow's database schema.
+Langflow requires PostgreSQL 15 or higher when configured to use PostgreSQL.
+
+To resolve this issue, upgrade your PostgreSQL instance to version 15 or higher, and then restart Langflow.
+
 ### An API key must be passed as query or header
 
 The following error can occur when attempting to sign up on the Langflow sign in page: `An API key must be passed as query or header`.