diff --git a/.generator/schemas/v2/openapi.yaml b/.generator/schemas/v2/openapi.yaml
index 4331313d34b..c5a02462192 100644
--- a/.generator/schemas/v2/openapi.yaml
+++ b/.generator/schemas/v2/openapi.yaml
@@ -138112,7 +138112,7 @@ paths:
     get:
       description: |-
         Returns a list of environments for the organization.
-        Supports filtering by name and key.
+        Supports filtering by name, key, and DD_ENV.
       operationId: ListFeatureFlagsEnvironments
       parameters:
         - description: Filter environments by name (partial matching).
@@ -138127,6 +138127,12 @@ paths:
           name: key
           schema:
             type: string
+        - description: Filter environments by queries that contain the provided DD_ENV value.
+          example: "staging"
+          in: query
+          name: dd_env
+          schema:
+            type: string
         - description: Maximum number of results to return.
           example: 10
           in: query
diff --git a/src/main/java/com/datadog/api/client/v2/api/FeatureFlagsApi.java b/src/main/java/com/datadog/api/client/v2/api/FeatureFlagsApi.java
index 43cf9f3f704..ad5430c1538 100644
--- a/src/main/java/com/datadog/api/client/v2/api/FeatureFlagsApi.java
+++ b/src/main/java/com/datadog/api/client/v2/api/FeatureFlagsApi.java
@@ -1996,6 +1996,7 @@ public CompletableFuture<ApiResponse<ListFeatureFlagsResponse>> listFeatureFlags
   public static class ListFeatureFlagsEnvironmentsOptionalParameters {
     private String name;
     private String key;
+    private String ddEnv;
     private Long limit;
     private Long offset;
 
@@ -2021,6 +2022,18 @@ public ListFeatureFlagsEnvironmentsOptionalParameters key(String key) {
       return this;
     }
 
+    /**
+     * Set ddEnv.
+     *
+     * @param ddEnv Filter environments by queries that contain the provided DD_ENV value.
+     *     (optional)
+     * @return ListFeatureFlagsEnvironmentsOptionalParameters
+     */
+    public ListFeatureFlagsEnvironmentsOptionalParameters ddEnv(String ddEnv) {
+      this.ddEnv = ddEnv;
+      return this;
+    }
+
     /**
      * Set limit.
      *
@@ -2106,7 +2119,8 @@ public CompletableFuture<ListEnvironmentsResponse> listFeatureFlagsEnvironmentsA
   }
 
   /**
-   * Returns a list of environments for the organization. Supports filtering by name and key.
+   * Returns a list of environments for the organization. Supports filtering by name, key, and
+   * DD_ENV.
    *
    * @param parameters Optional parameters for the request.
    * @return ApiResponse&lt;ListEnvironmentsResponse&gt;
@@ -2125,6 +2139,7 @@ public ApiResponse<ListEnvironmentsResponse> listFeatureFlagsEnvironmentsWithHtt
     Object localVarPostBody = null;
     String name = parameters.name;
     String key = parameters.key;
+    String ddEnv = parameters.ddEnv;
     Long limit = parameters.limit;
     Long offset = parameters.offset;
     // create path and map variables
@@ -2135,6 +2150,7 @@ public ApiResponse<ListEnvironmentsResponse> listFeatureFlagsEnvironmentsWithHtt
 
     localVarQueryParams.addAll(apiClient.parameterToPairs("", "name", name));
     localVarQueryParams.addAll(apiClient.parameterToPairs("", "key", key));
+    localVarQueryParams.addAll(apiClient.parameterToPairs("", "dd_env", ddEnv));
     localVarQueryParams.addAll(apiClient.parameterToPairs("", "limit", limit));
     localVarQueryParams.addAll(apiClient.parameterToPairs("", "offset", offset));
 
@@ -2172,6 +2188,7 @@ public ApiResponse<ListEnvironmentsResponse> listFeatureFlagsEnvironmentsWithHtt
     Object localVarPostBody = null;
     String name = parameters.name;
     String key = parameters.key;
+    String ddEnv = parameters.ddEnv;
     Long limit = parameters.limit;
     Long offset = parameters.offset;
     // create path and map variables
@@ -2182,6 +2199,7 @@ public ApiResponse<ListEnvironmentsResponse> listFeatureFlagsEnvironmentsWithHtt
 
     localVarQueryParams.addAll(apiClient.parameterToPairs("", "name", name));
     localVarQueryParams.addAll(apiClient.parameterToPairs("", "key", key));
+    localVarQueryParams.addAll(apiClient.parameterToPairs("", "dd_env", ddEnv));
     localVarQueryParams.addAll(apiClient.parameterToPairs("", "limit", limit));
     localVarQueryParams.addAll(apiClient.parameterToPairs("", "offset", offset));