diff --git a/build-constraints.yaml b/build-constraints.yaml
index 87adebf6..0e80f53b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -430,8 +430,8 @@ packages:
     "Simon Jakobi <simon.jakobi@gmail.com> @sjakobi":
         - path
         - present < 0 # MonadFail
-        - threepenny-gui < 0 # via base-4.13.0.0
-        - snap-server < 0 # via base-4.13.0.0
+        - threepenny-gui
+        - snap-server
         - newtype-generics
         - bsb-http-chunked
         - coercible-utils
@@ -537,7 +537,7 @@ packages:
         - s3-signer < 0 # via http-types
         # - google-translate # servant 0.12
         # - hackernews # servant 0.12
-        - ses-html < 0 # via http-streams
+        - ses-html
         # - stripe-haskell # free 5
         # - stripe-http-streams # free 5
         - stripe-core < 0 # via aeson-1.3.1.0
@@ -710,7 +710,7 @@ packages:
         # profiteur # aeson-1.4.0.0
         - psqueues
         - websockets
-        - websockets-snap < 0 # via io-streams
+        - websockets-snap
         - hakyll < 0 # jaspervdj/hakyll#691
 
     "Sibi Prabakaran <sibi@psibi.in> @psibi":
@@ -1556,7 +1556,7 @@ packages:
         - mole < 0 # GHC 8.4 via base-4.11.0.0
         - publicsuffix
         - rethinkdb-client-driver
-        - snap-blaze < 0 # via snap-core
+        - snap-blaze
 
     "Alexandr Kurilin <alex@kurilin.net> @alex_kurilin":
         - bcrypt
@@ -2421,12 +2421,12 @@ packages:
     "Gregory Collins <greg@gregorycollins.net> @gregorycollins":
         - hashtables
         - io-streams
-        - openssl-streams < 0 # via test-framework-hunit
+        - openssl-streams
 
     "Andrew Cowie <andrew@operationaldynamics.com> @afcowie":
         - chronologique
         - http-common
-        - http-streams < 0 # via io-streams & openssl-streams
+        - http-streams
         - locators < 0 # via cryptohash
         - core-data
         - core-program
@@ -2966,7 +2966,7 @@ packages:
         - postgresql-transactional < 0 # via postgresql-simple
 
     "Tom Murphy <amindfv@gmail.com>":
-        - gingersnap < 0 # via snap-core
+        - gingersnap
         - microspec
         - midair
         - nano-erl
@@ -4290,7 +4290,7 @@ packages:
         - insert-ordered-containers
         - inspection-testing
         - integer-logarithms
-        - io-streams-haproxy < 0 # via base-4.13.0.0
+        - io-streams-haproxy
         - ixset-typed < 0 # via safecopy-0.10.0
         - json < 0 # via base-4.13.0.0
         - json-alt
@@ -4418,7 +4418,7 @@ packages:
         - size-based
         - skein
         - skylighting-core
-        - snap-core < 0 # via test-framework
+        - snap-core
         - some
         - special-values
         - splice
@@ -5557,7 +5557,6 @@ skipped-benchmarks:
     - monad-logger-prefix
     - monad-memo
     - netpbm
-    - newtype-generics
     - openpgp-asciiarmor
     - phantom-state
     - pretty-simple