diff --git a/build-constraints.yaml b/build-constraints.yaml
index 56a1bba6..226ad5e6 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2789,14 +2789,12 @@ skipped-tests:
     - websockets
     # # Other outdated dependencies
     - Cabal # QuickCheck 2.9
-    - ChasingBottoms # QuickCheck 2.9
     - ReadArgs # https://github.com/rampion/ReadArgs/issues/8
     - avers # hspec 2.3
     - bytestring-handle # QuickCheck 2.9
     - cases # https://github.com/nikita-volkov/cases/pull/3
     - chell # options & via chell-quickcheck
     - clay # hspec 2.3
-    - concurrent-extra # https://github.com/basvandijk/concurrent-extra/pull/15
     - ed25519 # QuickCheck 2.9
     - fgl # hspec 2.3
     - fgl-arbitrary # hspec 2.3
@@ -2809,10 +2807,9 @@ skipped-tests:
     - servant-mock # hspec-wai 0.8
     - snap # QuickCheck 2.9
     - state-plus # QuickCheck 2.9
-    - system-filepath # QuickCheck 2.9
+    - system-filepath # QuickCheck 2.9 via chell-quickcheck
     - terminal-progress-bar # fixed on master, depends on older version of itself
     - vector # https://github.com/haskell/vector/commit/31edb3fc51e76facc1e291f1e9e721663d91dbd8
-    - zlib # 0.6.1.1-r3 https://github.com/haskell/zlib/issues/2
 
     # Transitive outdated dependencies
     # These packages
@@ -3215,3 +3212,4 @@ tell-me-when-its-released:
 - yarr-1.4.0.2 # Re-enable package https://github.com/fpco/stackage/issues/1876
 - haskell-gi-0.18 # Lift constraint on haskell-gi-base
 - terminal-progress-bar-0.1.1 # Unskip test suite
+- optparse-applicative-0.13.0.0 # Unskip test suite https://github.com/pcapriotti/optparse-applicative/issues/228