diff --git a/build-constraints.yaml b/build-constraints.yaml
index 43d880ec..3ea045b1 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2834,7 +2834,8 @@ packages:
         - massiv-io
 
     "Hans-Peter Deifel <hpd@hpdeifel.de> @hpdeifel":
-        - hledger-iadd
+        []
+        # - hledger-iadd # megaparsec 6.5.0
 
     "Roy Levien <royl@aldaron.com> @orome":
         - crypto-enigma
@@ -4419,6 +4420,9 @@ skipped-tests:
     - hpack # haskell-src-exts via interpolate
 
     - ihaskell # haskell-src-exts via here
+    
+    # Uses Cabal's "library internal" stanza feature
+    - s3-signer
 
 # end of skipped-tests