diff --git a/build-constraints.yaml b/build-constraints.yaml
index f9f1a8fd..43d880ec 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2151,7 +2151,7 @@ packages:
         - text-metrics
         - tagged-identity
         - req
-        # - req-conduit # conduit 1.3
+        - req-conduit
         - cue-sheet
         - wave
         - flac
@@ -3409,9 +3409,7 @@ packages:
         - glob-posix < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
         - hdevtools < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
         - hformat < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
-        - htaglib < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
         - ini < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
-        - lame < 0 # DependencyFailed (PackageName "htaglib")
         - loch-th < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
         - ochintin-daicho < 0 # DependencyFailed (PackageName "bookkeeping")
         - pred-set < 0 # DependencyFailed (PackageName "HSet")
@@ -3774,10 +3772,8 @@ packages:
         - haskell-tools-ast < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - haskell-tools-backend-ghc < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - haskell-tools-refactor < 0 # GHC 8.4 via template-haskell-2.13.0.0
-        - modern-uri < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - monad-mock < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - servant-swagger-ui < 0 # GHC 8.4 via template-haskell-2.13.0.0
-        - stache < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - strive < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - test-fixture < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - th-to-exp < 0 # GHC 8.4 via template-haskell-2.13.0.0
@@ -3868,8 +3864,6 @@ packages:
         - text-generic-pretty < 0 # GHC 8.4 via ixset-typed
         - log-warper < 0 # GHC 8.4 via lifted-async-0.10.0.1
         - heist < 0 # GHC 8.4 via map-syntax
-        - mmark < 0 # GHC 8.4 via modern-uri
-        - mmark-ext < 0 # GHC 8.4 via modern-uri
         - req-url-extra < 0 # GHC 8.4 via modern-uri
         - online < 0 # GHC 8.4 via numhask
         - plot-light < 0 # GHC 8.4 via palette
@@ -3937,7 +3931,6 @@ packages:
         - servant-websockets < 0 # GHC 8.4 via servant-server
         - hledger-api < 0 # GHC 8.4 via servant-swagger
         - pandoc < 0 # GHC 8.4 via skylighting-0.7.1
-        - mmark-cli < 0 # GHC 8.4 via stache
         - pipes-text < 0 # GHC 8.4 via streaming-commons-0.2.0.0
         - highjson-swagger < 0 # GHC 8.4 via swagger2
         - highjson-th < 0 # GHC 8.4 via swagger2