diff --git a/README.md b/README.md
index b18652a77b..33d7dd1923 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,11 @@
 <img src="passbook/static/static/passbook/logo.svg" height="50" alt="passbook logo"><img src="passbook/static/static/passbook/brand_inverted.svg" height="50" alt="passbook">
 
-![](https://img.shields.io/github/workflow/status/beryju/passbook/passbook-ci?style=flat-square)
-![](https://img.shields.io/docker/pulls/beryju/passbook.svg?style=flat-square)
-![](https://img.shields.io/docker/pulls/beryju/passbook-gatekeeper.svg?style=flat-square)
-![](https://img.shields.io/docker/pulls/beryju/passbook-static.svg?style=flat-square)
-![](https://img.shields.io/docker/v/beryju/passbook?sort=semver&style=flat-square)
-![](https://img.shields.io/codecov/c/gh/beryju/passbook?style=flat-square)
+![CI Build status](https://img.shields.io/github/workflow/status/beryju/passbook/passbook-ci?style=flat-square)
+![Docker pulls](https://img.shields.io/docker/pulls/beryju/passbook.svg?style=flat-square)
+![Docker pulls (gatekeeper)](https://img.shields.io/docker/pulls/beryju/passbook-gatekeeper.svg?style=flat-square)
+![Latest version](https://img.shields.io/docker/v/beryju/passbook?sort=semver&style=flat-square)
+![LGTM Grade](https://img.shields.io/lgtm/grade/python/github/BeryJu/passbook?style=flat-square)
+![Code Coverage](https://img.shields.io/codecov/c/gh/beryju/passbook?style=flat-square)
 
 ## What is passbook?
 
diff --git a/passbook/providers/saml/views.py b/passbook/providers/saml/views.py
index a8497fed9e..8c182ecc37 100644
--- a/passbook/providers/saml/views.py
+++ b/passbook/providers/saml/views.py
@@ -102,7 +102,7 @@ class SAMLSSOBindingRedirectView(SAMLSSOView):
     """SAML Handler for SSO/Redirect bindings, which are sent via GET"""
 
     # pylint: disable=unused-argument
-    def get(
+    def get(  # lgtm [py/similar-function]
         self, request: HttpRequest, application_slug: str
     ) -> Optional[HttpResponse]:
         """Handle REDIRECT bindings"""
diff --git a/passbook/sources/oauth/clients.py b/passbook/sources/oauth/clients.py
index 35c58d7baa..0b3cb85f81 100644
--- a/passbook/sources/oauth/clients.py
+++ b/passbook/sources/oauth/clients.py
@@ -94,8 +94,6 @@ class OAuthClient(BaseOAuthClient):
                 "oauth_callback": callback,
                 "token": raw_token,
             }
-            callback = request.build_absolute_uri(callback or request.path)
-            callback = force_text(callback)
             try:
                 response = self.session.request(
                     "post",