diff --git a/global/overlay/etc/puppet/manifests/cosmos-site.pp b/global/overlay/etc/puppet/manifests/cosmos-site.pp
index 3d3c03f8..ce25f656 100644
--- a/global/overlay/etc/puppet/manifests/cosmos-site.pp
+++ b/global/overlay/etc/puppet/manifests/cosmos-site.pp
@@ -276,6 +276,7 @@ class eidas_de_middleware($version="106-rs",$hostname='localhost') {
                    '/dev/log:/dev/log',
                    '/etc/ssl:/etc/ssl'],
       env      => ["CERTNAME=${::fqdn}_infra",
+                   "EIDAS_SIGNER_DEFAULT_HASH_ALGORITHM=SHA256",
                    "PUBLIC_HOSTNAME=$_hostname",
                    "POSEIDAS_ADMIN_HASHED_PASSWORD=$poseidas_admin_hashed_password",
                    "SPRING_DATASOURCE_PASSWORD=$spring_datasource_password",