diff --git a/en/self-host/configuration/environments.mdx b/en/self-host/configuration/environments.mdx
index 45aad29f7..7207e4b6b 100644
--- a/en/self-host/configuration/environments.mdx
+++ b/en/self-host/configuration/environments.mdx
@@ -509,7 +509,7 @@ Default: `weaviate`
 
 Selects the vector database backend. If a dataset already has an index, the dataset's stored type takes precedence over this setting. When switching providers in Docker Compose, `COMPOSE_PROFILES` automatically starts the matching container based on this value.
 
-Supported values: `weaviate`, `oceanbase`, `seekdb`, `qdrant`, `milvus`, `myscale`, `relyt`, `pgvector`, `pgvecto-rs`, `chroma`, `opensearch`, `oracle`, `tencent`, `elasticsearch`, `elasticsearch-ja`, `analyticdb`, `couchbase`, `vikingdb`, `opengauss`, `tablestore`, `vastbase`, `tidb`, `tidb_on_qdrant`, `baidu`, `lindorm`, `huawei_cloud`, `upstash`, `matrixone`, `clickzetta`, `alibabacloud_mysql`, `iris`, `hologres`.
+Supported values: `weaviate`, `oceanbase`, `seekdb`, `qdrant`, `milvus`, `myscale`, `relyt`, `pgvector`, `pgvecto-rs`, `chroma`, `opensearch`, `oracle`, `tencent`, `elasticsearch`, `elasticsearch-ja`, `analyticdb`, `couchbase`, `vikingdb`, `opengauss`, `tablestore`, `vastbase`, `tidb`, `tidb_on_qdrant`, `baidu`, `lindorm`, `huawei_cloud`, `upstash`, `matrixone`, `clickzetta`, `alibabacloud_mysql`, `iris`, `hologres`, `valkey`.
 
 | Variable | Default | Description |
 |---|---|---|
@@ -559,6 +559,21 @@ seekdb is the lite version of OceanBase and shares the same connection configura
 
 </Accordion>
 
+<Accordion title="Valkey">
+
+Valkey is an open-source key-value store with a vector search module (`valkey-search`) for similarity search. Requires the `valkey-search` module >= 1.2.0, included in the `valkey/valkey-bundle:latest` Docker image.
+
+| Variable | Default | Description |
+|---|---|---|
+| `VALKEY_HOST` | `localhost` | Hostname or IP address of the Valkey server. |
+| `VALKEY_PORT` | `6379` | Port number. |
+| `VALKEY_PASSWORD` | (empty) | Authentication password. |
+| `VALKEY_DB` | `0` | Database number (0–15). |
+| `VALKEY_USE_SSL` | `false` | Enable SSL/TLS for the connection. |
+| `VALKEY_DISTANCE_METRIC` | `COSINE` | Distance metric for vector similarity search. Options: `COSINE`, `L2`, `IP`. |
+
+</Accordion>
+
 <Accordion title="Milvus">
 
 | Variable | Default | Description |