diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1b45418d..53ae3fc6 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -895,6 +895,9 @@ expected-test-failures:
     # https://github.com/jswebtools/language-ecmascript/issues/60
     - language-ecmascript
 
+    # https://github.com/mvoidex/hdocs/issues/3
+    - hdocs
+
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4
@@ -903,6 +906,9 @@ expected-haddock-failures:
     # https://github.com/ekmett/gl/issues/4
     - gl
 
+    # https://github.com/leventov/yarr/issues/5
+    - yarr
+
 # Benchmarks which should not be built. Note that Stackage does *not* generally
 # build benchmarks. The difference here will be whether dependencies for these
 # benchmarks are included or not.