diff --git a/build-constraints.yaml b/build-constraints.yaml
index 08caebbd..e5916e21 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3843,6 +3843,7 @@ expected-test-failures:
     - haddock
     - heap # https://github.com/pruvisto/heap/issues/4
     - hspec-expectations-pretty-diff # GHC 8 issue not reported upstream since issue tracker disabled
+    - http-reverse-proxy # https://github.com/fpco/http-reverse-proxy/issues/26
     - hweblib # https://github.com/aycanirican/hweblib/issues/3
     - language-dockerfile # https://github.com/beijaflor-io/haskell-language-dockerfile/issues/8
     - language-lua2 # https://github.com/mitchellwrosen/language-lua2/issues/4