diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9c9adef4..4d138815 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -680,7 +680,7 @@ packages:
         - accelerate-io
         - accelerate-fft
         - accelerate-blas
-        # - accelerate-bignum # wide-word-0.1.0.3. No maintainer. @erikd. Used by: test-suite
+        - accelerate-bignum
         - repa
         - repa-io
         - repa-algorithms
@@ -698,6 +698,7 @@ packages:
         - cusparse
         - cusolver
         - nvvm
+        - wide-word
 
     "Liam O'Connor <liamoc@cse.unsw.edu.au> @liamoc":
         []
@@ -3775,6 +3776,7 @@ expected-test-failures:
     - wai-cors # PhantomJS
     - wai-session-postgresql # PostgreSQL
     - webdriver-angular # webdriver server
+    - accelerate-bignum # CUDA GPU
 
     # Test executable requires arguments
     - hpqtypes