diff --git a/src/oidc.js b/src/oidc.js
index 4f0f8b1ca..5c749c1cf 100644
--- a/src/oidc.js
+++ b/src/oidc.js
@@ -183,7 +183,8 @@ class CloudronAdapter {
             const tmp = {
                 client_id: id,
                 client_secret: client.secret,
-                redirect_uris: [ client.loginRedirectUri ]
+                redirect_uris: [ client.loginRedirectUri ],
+                id_token_signed_response_alg: 'EdDSA'
             };
 
             if (client.logoutRedirectUri) tmp.post_logout_redirect_uris = [ client.logoutRedirectUri ];