diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1259ad78..4c470da7 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8375,7 +8375,6 @@ expected-test-failures:
     - generic-optics # 2.2.1.0 optimization output https://github.com/kcsongor/generic-lens/issues/133
     - github-types # https://github.com/commercialhaskell/stackage/issues/6549
     - hakyll # https://github.com/commercialhaskell/stackage/issues/7970
-    - haskell-igraph # https://github.com/commercialhaskell/stackage/issues/7971
     - hgeometry-combinatorial # 0.14
     - hruby # 0.5.1.0
     - hspec-golden-aeson # 0.9.0.0
@@ -8534,6 +8533,7 @@ skipped-tests:
     - ghc-exactprint # flaky fails with 'executable not found' & and runs around 15 minutes (so put here instead of expected-test-failures)
     - hie-bios # cabal, stack, ghc; see https://github.com/commercialhaskell/stackage/issues/5025
     - hpc-codecov # timeouts? https://github.com/commercialhaskell/stackage/issues/5976
+    - haskell-igraph # hangs at 100% CPU; kill-resistant. Also an expected failure: https://github.com/commercialhaskell/stackage/issues/7971
     - ihaskell # Never finishes https://github.com/IHaskell/IHaskell/issues/1413
     - isocline # interactive hangs
     - jsaddle # Never finishes without framebuffer https://github.com/ghcjs/jsaddle/issues/9