diff --git a/unionflow-server-impl-quarkus/src/main/java/dev/lions/unionflow/server/resource/MembreResource.java b/unionflow-server-impl-quarkus/src/main/java/dev/lions/unionflow/server/resource/MembreResource.java
index 811a807..b6e79c0 100644
--- a/unionflow-server-impl-quarkus/src/main/java/dev/lions/unionflow/server/resource/MembreResource.java
+++ b/unionflow-server-impl-quarkus/src/main/java/dev/lions/unionflow/server/resource/MembreResource.java
@@ -381,7 +381,6 @@ public class MembreResource {
                                     "includeInactifs": false
                                   }
                                   """)))
-          @Valid
           MembreSearchCriteria criteria,
       @Parameter(description = "Numéro de page (0-based)", example = "0")
           @QueryParam("page")
@@ -453,6 +452,11 @@ public class MembreResource {
 
       return Response.ok(result).build();
 
+    } catch (jakarta.validation.ConstraintViolationException e) {
+      LOG.warnf("Erreur de validation Jakarta dans la recherche avancée: %s", e.getMessage());
+      return Response.status(Response.Status.BAD_REQUEST)
+          .entity(Map.of("message", "Critères de recherche invalides", "details", e.getMessage()))
+          .build();
     } catch (IllegalArgumentException e) {
       LOG.warnf("Erreur de validation dans la recherche avancée: %s", e.getMessage());
       return Response.status(Response.Status.BAD_REQUEST)