diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 86e3c19e..5c4c1648 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -3,9 +3,10 @@ updates:
   - package-ecosystem: "pip"
     directory: "/"
     schedule:
-      interval: daily
-      time: "13:00"
+      interval: monthly
     groups:
       python-packages:
         patterns:
-          - "*"
+              - "*"
+    ignore:
+      - dependency-name: "pyzx"
diff --git a/graphix/pyzx.py b/graphix/pyzx.py
index 5f6c4bcf..2925780f 100644
--- a/graphix/pyzx.py
+++ b/graphix/pyzx.py
@@ -50,7 +50,7 @@ def to_pyzx_graph(og: OpenGraph) -> BaseGraph[int, tuple[int, int]]:
     g = Graph()
 
     # Add vertices into the graph and set their type
-    def add_vertices(n: int, ty: VertexType) -> list[VertexType]:
+    def add_vertices(n: int, ty: VertexType.Type) -> list[VertexType]:
         verts = g.add_vertices(n)
         for vert in verts:
             g.set_type(vert, ty)
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 2939c1d9..e73929b5 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -21,4 +21,4 @@ qiskit-aer
 rustworkx
 
 # Optional dependency. Pinned due to version changes often being incompatible
-pyzx==0.9.0
+pyzx==0.8.0