diff --git a/djangosaml2/overrides.py b/djangosaml2/overrides.py
index 96849bec..32bf673a 100644
--- a/djangosaml2/overrides.py
+++ b/djangosaml2/overrides.py
@@ -21,4 +21,11 @@ def do_logout(self, *args, **kwargs):
             except AttributeError:
                 logger.warning('SAML_LOGOUT_REQUEST_PREFERRED_BINDING setting is'
                     ' not defined. Default binding will be used.')
+
+        # 1. global_logout calls do_logout but does not forward kwargs, so we cannot use global_logout(sigalg=sigalg)
+        # 2. sigalg is used by BINDING_HTTP_REDIRECT
+        if kwargs.get('sign_alg') and not kwargs.get('sigalg'):
+            logger.debug("Setting sigalg: %s", kwargs.get('sign_alg'))
+            kwargs['sigalg'] = kwargs.get('sign_alg')
+
         return super(Saml2Client, self).do_logout(*args, **kwargs)
diff --git a/djangosaml2/views.py b/djangosaml2/views.py
index b71f3218..21273f2e 100644
--- a/djangosaml2/views.py
+++ b/djangosaml2/views.py
@@ -82,6 +82,31 @@ def callable_bool(value):
         return value
 
 
+def get_sigalg(conf):
+    # See also:
+    #    1. https://github.com/IdentityPython/pysaml2/pull/396
+    #    2. https://github.com/IdentityPython/pysaml2/pull/495
+    #
+    # Configuration example:
+    # {
+    #     'service': {
+    #         'sp': {
+    #             'authn_requests_signed': True,
+    #             'authn_requests_signed_alg': 'sha256'
+    #         }
+    #     }
+    # }
+    #
+    sign_requests = getattr(conf, '_sp_authn_requests_signed', False)
+
+    sig_alg_option_map = {'sha1': SIG_RSA_SHA1,
+                          'sha256': SIG_RSA_SHA256}
+
+    sig_alg_option = getattr(conf, '_sp_authn_requests_signed_alg', 'sha1')
+    logger.debug("sig_alg_option: %s", sig_alg_option)
+    return sig_alg_option_map.get(sig_alg_option, SIG_RSA_SHA1) if sign_requests else None
+
+
 def login(request,
           config_loader_path=None,
           wayf_template='djangosaml2/wayf.html',
@@ -171,15 +196,13 @@ def login(request,
     client = Saml2Client(conf)
     http_response = None
 
+    sigalg = get_sigalg(conf)
+
     logger.debug('Redirecting user to the IdP via %s binding.', binding)
     if binding == BINDING_HTTP_REDIRECT:
         try:
             # do not sign the xml itself, instead use the sigalg to
             # generate the signature as a URL param
-            sig_alg_option_map = {'sha1': SIG_RSA_SHA1,
-                                  'sha256': SIG_RSA_SHA256}
-            sig_alg_option = getattr(conf, '_sp_authn_requests_signed_alg', 'sha1')
-            sigalg = sig_alg_option_map[sig_alg_option] if sign_requests else None
             nsprefix = get_namespace_prefixes()
             session_id, result = client.prepare_for_authenticate(
                 entityid=selected_idp, relay_state=came_from,
@@ -200,7 +223,8 @@ def login(request,
                 return HttpResponse(text_type(e))
             session_id, request_xml = client.create_authn_request(
                 location,
-                binding=binding)
+                binding=binding,
+                sign_alg=sigalg)
             try:
                 if PY3:
                     saml_request = base64.b64encode(binary_type(request_xml, 'UTF-8'))
@@ -222,7 +246,7 @@ def login(request,
             try:
                 session_id, result = client.prepare_for_authenticate(
                     entityid=selected_idp, relay_state=came_from,
-                    binding=binding)
+                    binding=binding, sign_alg=sigalg)
             except TypeError as e:
                 logger.error('Unable to know which IdP to use')
                 return HttpResponse(text_type(e))
@@ -364,6 +388,7 @@ def logout(request, config_loader_path=None):
     """
     state = StateCache(request.session)
     conf = get_config(config_loader_path, request)
+    sigalg = get_sigalg(conf)
 
     client = Saml2Client(conf, state_cache=state,
                          identity_cache=IdentityCache(request.session))
@@ -373,7 +398,7 @@ def logout(request, config_loader_path=None):
             'The session does not contain the subject id for user %s',
             request.user)
 
-    result = client.global_logout(subject_id)
+    result = client.global_logout(subject_id, sign_alg=sigalg)
 
     state.sync()