diff --git a/build-constraints.yaml b/build-constraints.yaml
index 71815529..7e7c9278 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3754,6 +3754,7 @@ expected-test-failures:
     - commutative # https://github.com/athanclark/commutative/issues/4
     - dbus # 0.10.12 No issue tracker, e-mail sent to maintainer
     - hspec-expectations-pretty-diff # GHC 8 issue not reported upstream since issue tracker disabled
+    - hweblib # https://github.com/aycanirican/hweblib/issues/3
     - language-lua2 # https://github.com/mitchellwrosen/language-lua2/issues/4
     - leapseconds-announced # https://github.com/bjornbm/leapseconds-announced/issues/5
     - picosat # https://github.com/fpco/stackage/pull/2382
@@ -3763,6 +3764,7 @@ expected-test-failures:
     - thyme # https://github.com/liyang/thyme/issues/50
     - tls # https://github.com/vincenthz/hs-tls/issues/247
     - tries # https://github.com/athanclark/tries/issues/2
+    - unicode-transforms # https://github.com/harendra-kumar/unicode-transforms/issues/15
     - vector-algorithms # http://hub.darcs.net/dolio/vector-algorithms/issue/9
     - wai-middleware-content-type # 0.4.1 - https://github.com/athanclark/wai-middleware-content-type/issues/2
     - xmlgen # https://github.com/skogsbaer/xmlgen/issues/6