diff --git a/build-constraints.yaml b/build-constraints.yaml
index a6b544f4..44bf0a0e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -278,11 +278,8 @@ packages:
         - fft
         - carray
         - netlib-ffi
-        - netlib-carray
         - blas-ffi
-        - blas-carray
         - lapack-ffi
-        - lapack-carray
         - lapack-ffi-tools
         # Not a maintainer
         - ix-shapable
@@ -3880,9 +3877,6 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/4241
         - Glob < 0.10
 
-        # https://github.com/commercialhaskell/stackage/issues/4243
-        - blas-ffi < 0.1
-
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of