diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5ebbbed4..5327fa52 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3821,8 +3821,6 @@ packages:
         - microformats2-parser < 0 # GHC 8.4 via aeson-qq
         - stratosphere < 0 # GHC 8.4 via aeson-qq
         - mltool < 0 # GHC 8.4 via ascii-progress
-        - classy-prelude-conduit < 0 # GHC 8.4 via classy-prelude
-        - classy-prelude-yesod < 0 # GHC 8.4 via classy-prelude
         - brick < 0 # GHC 8.4 via config-ini
         - cabal2nix < 0 # GHC 8.4 via distribution-nixpkgs
         - check-email < 0 # GHC 8.4 via email-validate
@@ -4068,14 +4066,6 @@ packages:
         - wl-pprint-console < 0 # GHC 8.4 via wl-pprint-annotated
         - wl-pprint-terminfo < 0 # GHC 8.4 via wl-pprint-extras
         - writer-cps-full < 0 # GHC 8.4 via writer-cps-lens
-        - yi-fuzzy-open < 0 # GHC 8.4 via yi-core
-        - yi-ireader < 0 # GHC 8.4 via yi-core
-        - yi-keymap-cua < 0 # GHC 8.4 via yi-core
-        - yi-keymap-emacs < 0 # GHC 8.4 via yi-core
-        - yi-misc-modes < 0 # GHC 8.4 via yi-core
-        - yi-mode-haskell < 0 # GHC 8.4 via yi-core
-        - yi-mode-javascript < 0 # GHC 8.4 via yi-core
-        - yi-snippet < 0 # GHC 8.4 via yi-core
         - yi-fuzzy-open < 0 # GHC 8.4 via yi-language
         - yi-ireader < 0 # GHC 8.4 via yi-language
         - yi-keymap-emacs < 0 # GHC 8.4 via yi-language
@@ -4095,7 +4085,6 @@ packages:
         - selda-sqlite < 0 # GHC 8.4 via direct-sqlite
         - distributed-process-monad-control < 0 # GHC 8.4 via distributed-process
         - flat-mcmc < 0 # GHC 8.4 via formatting
-        - process-extras < 0 # GHC 8.4 via generic-deriving
         - unicode-transforms < 0 # GHC 8.4 via getopt-generics
         - disposable < 0 # GHC 8.4 via ghcjs-base-stub
         - javascript-extras < 0 # GHC 8.4 via ghcjs-base-stub
@@ -4134,7 +4123,6 @@ packages:
         - network-transport-tests < 0 # GHC 8.4 via network-transport
         - path-extra < 0 # GHC 8.4 via path
         - validity-path < 0 # GHC 8.4 via path
-        - pdfinfo < 0 # GHC 8.4 via process-extras
         - selda-postgresql < 0 # GHC 8.4 via selda
         - quickcheck-special < 0 # GHC 8.4 via special-values
         - slave-thread < 0 # GHC 8.4 via stm-containers
@@ -4224,8 +4212,6 @@ packages:
         - pipes-network < 0 # GHC 8.4 via pipes-safe
         - pred-trie < 0 # GHC 8.4 via poly-arity
         - squeal-postgresql < 0 # GHC 8.4 via postgresql-binary
-        - tasty-silver < 0 # GHC 8.4 via process-extras
-        - yi-core < 0 # GHC 8.4 via process-extras
         - rainbox < 0 # GHC 8.4 via rainbow
         - lambdabot-core < 0 # GHC 8.4 via random-fu
         - redis-io < 0 # GHC 8.4 via redis-resp
@@ -4439,7 +4425,6 @@ packages:
         - urlpath < 0 # GHC 8.4 via monad-control-aligned
         - urlpath < 0 # GHC 8.4 via path-extra
         - cayley-client < 0 # GHC 8.4 via hspec-2.5.0
-        - hoogle < 0 # GHC 8.4 via process-extras
         - req < 0 # GHC 8.4 via authenticate-oauth
         - reroute < 0 # GHC 8.4 via graph-core
         - persistent < 0 # GHC 8.4 via haskell-src-meta
@@ -4453,6 +4438,9 @@ packages:
         - MFlow < 0 # GHC 8.4 via TCache
         - MFlow < 0 # GHC 8.4 via Workflow
         - wai-middleware-prometheus < 0 # GHC 8.4 via prometheus-client
+        - yi-keymap-cua < 0 # GHC 8.4 via yi-core
+        - yi-keymap-cua < 0 # GHC 8.4 via yi-keymap-emacs
+        - yi-keymap-cua < 0 # GHC 8.4 via yi-rope
 
 
     "GHC upper bounds":