diff --git a/core/pom.xml b/core/pom.xml
index a64c44c..f1dd913 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -14,7 +14,7 @@
 
     <groupId>com.loremind</groupId>
     <artifactId>loremind-core</artifactId>
-    <version>0.6.10</version>
+    <version>0.6.11</version>
     <name>LoreMind Core</name>
     <description>Backend Core - Architecture Hexagonale</description>
 
diff --git a/core/src/main/java/com/loremind/infrastructure/web/controller/SettingsController.java b/core/src/main/java/com/loremind/infrastructure/web/controller/SettingsController.java
index a6b7557..dbd2cce 100644
--- a/core/src/main/java/com/loremind/infrastructure/web/controller/SettingsController.java
+++ b/core/src/main/java/com/loremind/infrastructure/web/controller/SettingsController.java
@@ -91,7 +91,12 @@ public class SettingsController {
     public ResponseEntity<StreamingResponseBody> pullOllamaModel(@RequestBody Map<String, Object> body) {
         guardDemoMode();
         StreamingResponseBody stream = output -> {
+            // Force HTTP/1.1 : le HttpClient JDK essaie HTTP/2 par defaut,
+            // mais uvicorn (Brain) ne supporte que HTTP/1.1 et rejette la
+            // tentative d'upgrade ("Unsupported upgrade request") -> la
+            // requete n'arrive jamais a notre endpoint Python.
             HttpClient http = HttpClient.newBuilder()
+                    .version(HttpClient.Version.HTTP_1_1)
                     .connectTimeout(Duration.ofSeconds(10))
                     .build();
             // Le RestTemplate auto-injecte X-Internal-Secret via un interceptor,
diff --git a/installers/install.ps1 b/installers/install.ps1
index dd42200..45e5df3 100644
--- a/installers/install.ps1
+++ b/installers/install.ps1
@@ -40,7 +40,7 @@
   Auteur       : ietm64
   Licence      : AGPL-3.0
   Projet       : LoreMindMJ - assistant pour Maitres de Jeu de JDR
-  Version      : 0.6.10
+  Version      : 0.6.11
 
 .LINK
   https://git.igmlcreation.fr/ietm64/loremind
diff --git a/web/package-lock.json b/web/package-lock.json
index 2c1faa0..39cdfc3 100644
--- a/web/package-lock.json
+++ b/web/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "loremind-web",
-  "version": "0.6.10",
+  "version": "0.6.11",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "loremind-web",
-      "version": "0.6.10",
+      "version": "0.6.11",
       "dependencies": {
         "@angular/animations": "^17.0.0",
         "@angular/common": "^17.0.0",
diff --git a/web/package.json b/web/package.json
index e8348b7..01f18fd 100644
--- a/web/package.json
+++ b/web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "loremind-web",
-  "version": "0.6.10",
+  "version": "0.6.11",
   "description": "LoreMind Frontend - Angular",
   "scripts": {
     "ng": "ng",