diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b71529c98..a1463e409 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,6 +3,10 @@ name: continuous integration
 on:
   push
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
 
   styling:
diff --git a/libraries/ashrae/223p/ontology/223p.ttl b/libraries/ashrae/223p/ontology/223p.ttl
index b67a5ec74..0cf55aca7 100644
--- a/libraries/ashrae/223p/ontology/223p.ttl
+++ b/libraries/ashrae/223p/ontology/223p.ttl
@@ -2409,14 +2409,6 @@ g36:FanWithVFDAnnotation a sh:NodeShape ;
             sh:subject sh:this ] ;
     sh:targetClass s223:Fan .
 
-g36:FilterAnnotation a sh:NodeShape ;
-    sh:rule [ a sh:TripleRule ;
-            sh:condition g36:Filter ;
-            sh:object g36:Filter ;
-            sh:predicate rdf:type ;
-            sh:subject sh:this ] ;
-    sh:targetClass s223:AirFilter .
-
 g36:HotWaterCoilAnnotation a sh:NodeShape ;
     sh:rule [ a sh:TripleRule ;
             rdfs:comment "If an instance of s223:HeatingCoil matches the constraints defined by g36:HotWaterCoil, it will be declared as an instance of that class." ;
diff --git a/tests/integration/test_database_persistence.py b/tests/integration/test_database_persistence.py
index d71d8e69d..b6802a156 100644
--- a/tests/integration/test_database_persistence.py
+++ b/tests/integration/test_database_persistence.py
@@ -8,9 +8,10 @@
 EXAMPLE_TRIPLE = (URIRef("http://example.org/alex"), RDF.type, FOAF.Person)
 
 
-def test_database_persistence(tmpdir):
+def test_database_persistence(tmp_path):
     # create bm
-    db_path = f"sqlite:///{tmpdir}/db.db"
+    path = tmp_path / "db.db"
+    db_path = f"sqlite:///{path}"
     bm = BuildingMOTIF(db_path)
     bm.setup_tables()