diff --git a/defaults/main.yml b/defaults/main.yml
index 57884885..8e3a3322 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -32,6 +32,11 @@ horizon_venv_python_executable: "{{ openstack_venv_python_executable | default('
 
 horizon_upper_constraints_url: "{{ requirements_git_url | default('https://releases.openstack.org/constraints/upper/' ~ requirements_git_install_branch | default('master')) }}"
 
+horizon_venv_extra_constraints:
+ - "pyScss===1.3.7;python_version=='3.8'"
+ - "pyScss===1.3.7;python_version=='3.9'"
+ - "pyScss===1.4.0;python_version=='3.10'"
+
 ## The git source/branch for Horizon
 horizon_git_repo: https://opendev.org/openstack/horizon
 horizon_git_track_branch: master
diff --git a/tasks/horizon_install_source.yml b/tasks/horizon_install_source.yml
index 90d39f00..81b4bd10 100644
--- a/tasks/horizon_install_source.yml
+++ b/tasks/horizon_install_source.yml
@@ -29,7 +29,7 @@
     name: "python_venv_build"
   vars:
     venv_python_executable: "{{ horizon_venv_python_executable }}"
-    venv_build_constraints: "{{ _u_c_contents.content.split('\n') | reject('match', '^horizon=') | list }}"
+    venv_build_constraints: "{{ _u_c_contents.content.split('\n') | reject('match', '^(horizon|pyScss)=') | list + horizon_venv_extra_constraints }}"
     venv_build_distro_package_list: "{{ horizon_devel_distro_packages }}"
     venv_install_destination_path: "{{ horizon_bin | dirname }}"
     venv_pip_install_args: "{{ horizon_pip_install_args }}"