diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9279584e6..96d10507a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -361,7 +361,7 @@ packages:
         - goggles
         - plot-light
         - mapquest-api
-        - datasets        
+        - datasets
 
     "Joseph Canero <jmc41493@gmail.com> @caneroj1":
         - sqlite-simple-errors
@@ -4370,6 +4370,11 @@ packages:
 
         # https://github.com/commercialhaskell/stackage/issues/4329
         - ansi-terminal < 0.9
+
+        # https://github.com/commercialhaskell/stackage/issues/4335
+        - flac < 0.2
+        - wave < 0.2
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of