diff --git a/specs/lichess-api.yaml b/specs/lichess-api.yaml
index 9425597..c2dfe36 100644
--- a/specs/lichess-api.yaml
+++ b/specs/lichess-api.yaml
@@ -1,6 +1,6 @@
 openapi: "3.1.0"
 info:
-  version: 2.0.135
+  version: 2.0.136
   title: Lichess.org API reference
   contact:
     name: "Lichess.org API"
diff --git a/specs/tags/studies/api-study-studyId-import-pgn.yaml b/specs/tags/studies/api-study-studyId-import-pgn.yaml
index 621ce3d..1b01424 100644
--- a/specs/tags/studies/api-study-studyId-import-pgn.yaml
+++ b/specs/tags/studies/api-study-studyId-import-pgn.yaml
@@ -45,6 +45,18 @@ post:
               default: white
             variant:
               $ref: "../../schemas/VariantKey.yaml"
+            mode:
+              type: string
+              description: |
+                Analysis mode.
+                If not specified, Normal analysis.
+                * practice - Practise with Computer
+                * conceal - Hide next moves
+                * gamebook - Interactive lesson
+              enum:
+                - practice
+                - conceal
+                - gamebook
           required:
             - pgn
   responses:
diff --git a/src/client/index.ts b/src/client/index.ts
index d3bb6f2..cb6b6ee 100644
--- a/src/client/index.ts
+++ b/src/client/index.ts
@@ -1902,6 +1902,7 @@ export class Lichess {
         name?: string;
         orientation?: "white" | "black";
         variant?: schemas.VariantKey;
+        mode?: "practice" | "conceal" | "gamebook";
       };
     },
   ) {