diff --git a/build-constraints.yaml b/build-constraints.yaml
index 847db480..2ab80594 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -681,7 +681,7 @@ 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
@@ -3778,6 +3778,7 @@ expected-test-failures:
     - wai-cors # PhantomJS
     - wai-session-postgresql # PostgreSQL
     - webdriver-angular # webdriver server
+    - accelerate-bignum # CUDA GPU
 
     # Test executable requires arguments
     - hpqtypes