diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2cb83ae9..b4cef52a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2499,6 +2499,10 @@ packages:
 
     "Philipp Balzarek <p.balzarek@googlemail.com>":
         - xml-picklers
+        
+    "Lennart Spitzner lsp@informatik.uni-kiel.de @lspitzner":
+        - multistate
+        - pqueue
 
     # If you stop maintaining a package you can move it here.
     # It will then be disabled if it starts causing problems.