diff --git a/build-constraints.yaml b/build-constraints.yaml
index dfdf2e00..d31a2225 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3449,7 +3449,19 @@ packages:
         # https://github.com/fpco/stackage/issues/3346
         - haskell-tools-refactor < 1.0.1.1
         # https://github.com/haskell-tools/haskell-tools/issues/615
+        # apparently these don't build well when out of sync
+        - haskell-tools-ast < 1.0.1.1
+        - haskell-tools-backend-ghc < 1.0.1.1
         - haskell-tools-builtin-refactorings < 1.0.1.1
+        - haskell-tools-cli < 1.0.1.1
+        - haskell-tools-daemon < 1.0.1.1
+        - haskell-tools-debug < 1.0.1.1
+        - haskell-tools-demo < 1.0.1.1
+        - haskell-tools-prettyprint < 1.0.1.1
+        - haskell-tools-refactor < 1.0.1.1
+        - haskell-tools-rewrite < 1.0.1.1
+
+        - haskell-tools-cli < 1.0.1.1
 
         # Requires too-new base
         - xhtml < 3000.2.2.1 # base >= 4.11