diff --git a/build-constraints.yaml b/build-constraints.yaml
index 21ea85c6..8b06cd7f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -103,24 +103,24 @@ packages:
         - sample-frame
         - sample-frame-np
         - set-cover
-        - sound-collage
-        - sox
+        # - sound-collage # GHC 8.2.1 via synthesizer-core
+        # - sox # GHC 8.2.1
         - soxlib
-        - split-record
+        # - split-record # GHC 8.2.1 via synthesizer-core
         - spreadsheet
         - stm-split
         - storable-record
         - storablevector
-        - synthesizer-core
-        - synthesizer-dimensional
-        - synthesizer-midi
+        # - synthesizer-core # GHC 8.2.1
+        # - synthesizer-dimensional # GHC 8.2.1 via synthesizer-core
+        # - synthesizer-midi # GHC 8.2.1 via synthesizer-core
         - tagchup
         - tfp
         - unicode
         - unsafe
         - utility-ht
         - xml-basic
-        - youtube
+        # - youtube # GHC 8.2.1
         - prelude-compat
 
         - fft
@@ -244,7 +244,7 @@ packages:
 
     "Michael Snoyman michael@snoyman.com @snoyberg":
         - bzlib-conduit
-        - cabal-install
+        # - cabal-install # GHC 8.2.1
         - mega-sdist
         - case-insensitive
         # - classy-prelude-yesod # GHC 8.2.1 via yesod
@@ -880,7 +880,7 @@ packages:
         - aeson-utils
         - arrow-list
         - attoparsec-expr
-        - bumper
+        # - bumper # GHC 8.2.1
         - code-builder
         # - fay-builder # via: fay
         - generic-aeson
@@ -1129,7 +1129,7 @@ packages:
     "Alois Cochard <alois.cochard@gmail.com> @aloiscochard":
         # - codex # bounds: http-client, wreq, directory
         - machines-binary
-        - machines-process
+        # - machines-process # GHC 8.2.1
         # - sarsi # bound: cryptonite
         # on behalf of Bryan O'Sullivan @bos:
         # - wreq # GHC 8.2.1 via snap-server
@@ -1167,9 +1167,9 @@ packages:
         # - jsaddle # via: ret-tf # https://github.com/fpco/stackage/issues/1569
         # - leksah-server # bounds: ghc, base
         # - ltk # bounds: ghc, base
-        - vado
+        # - vado # GHC 8.2.1
         # - vcsgui # via: gi-gtk-hs
-        - vcswrapper
+        # - vcswrapper # GHC 8.2.1
 
     "Renzo Carbonara <renzocarbonara@gmail.com> @k0001":
         - network-simple
@@ -2593,7 +2593,7 @@ packages:
 
     "Mikhail Glushenkov <mikhail.glushenkov@gmail.com> @23Skidoo":
         - Cabal
-        - cabal-install
+        # - cabal-install # GHC 8.2.1
         - pointful
 
     "Lennart Kolmodin <kolmodin@gmail.com> @kolmodin":
@@ -2673,7 +2673,7 @@ packages:
 
     "Stephen Diehl <stephen.m.diehl@gamil.com> @sdiehl":
         - protolude
-        - repline
+        # - repline # GHC 8.2.1
         - picosat
 
     "Daishi Nakajima <nakaji.dayo@gmail.com> @nakaji_dayo":
@@ -2879,7 +2879,7 @@ packages:
         - tasty-auto
         # - tasty-stats # GHC 8.2.1
         - colorful-monoids
-        - ihs
+        # - ihs # GHC 8.2.1
 
     "Taras Serduke <taras.serduke@gmail.com> @tserduke":
         - do-list
@@ -2984,10 +2984,10 @@ packages:
         - line
 
     "Hannes Saffrich <m0rphism@zankapfel.org> @m0rphism":
-        - dmenu
-        - dmenu-pmount
-        - dmenu-pkill
-        - dmenu-search
+        # - dmenu # GHC 8.2.1
+        # - dmenu-pmount # GHC 8.2.1
+        # - dmenu-pkill # GHC 8.2.1
+        # - dmenu-search # GHC 8.2.1
         - printcess
 
     "Alexey Kuleshevich <lehins@yandex.ru> @lehins":
@@ -3239,7 +3239,6 @@ packages:
         - haddock-library < 1.4.4
         - haddock-api < 2.18.1
         - haddock < 2.18.1
-        - Cabal < 2.0.0.2
         - base-noprelude < 4.10.0.0
         - inline-c < 0.6.0.0
         - inline-c-cpp < 0.2.0.0