diff --git a/Dockerfile b/Dockerfile
index af76a7e..3b2570a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,6 +10,7 @@ RUN set -exo pipefail \
         --disablerepo=* \
         --enablerepo=fedora,updates \
         gcc \
+        git \
         krb5-devel \
         openldap-devel \
         python3 \
diff --git a/requirements.txt b/requirements.txt
index 78f660b..d7f8e60 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,5 @@
 wheel==0.43.0
 pip==24.1.1
 setuptools==70.2.0
+# https://github.com/lepture/authlib/pull/662
+authlib @ git+https://github.com/AdamWill/authlib@oauth2-fix-introspect-endpoint