diff --git a/build-constraints.yaml b/build-constraints.yaml
index ed29fbf8..0a50abbf 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -359,7 +359,7 @@ packages:
         - lazyio
         - markov-chain
         - midi
-        - midi-music-box < 0 # via diagrams-lib
+        - midi-music-box
         - mbox-utility
         - med-module < 0 # compilation failure
         - monoid-transformer
@@ -924,21 +924,21 @@ packages:
 
     "Brent Yorgey <byorgey@gmail.com> @byorgey":
         - active < 0 # via base-4.13.0.0
-        - diagrams < 0 # via diagrams-contrib
-        - diagrams-builder < 0 # via lens-4.17
+        - diagrams
+        - diagrams-builder
         - diagrams-cairo < 0 # via lens-4.17
         - diagrams-canvas < 0 # via lens-4.17
-        - diagrams-contrib < 0 # via base-4.13.0.0
-        - diagrams-core < 0 # via base-4.13.0.0 & lens-4.18.1
+        - diagrams-contrib
+        - diagrams-core
         - diagrams-gtk < 0 # via diagrams-cairo
         - diagrams-html5 < 0 # via lens-4.17
-        - diagrams-lib < 0 # via base-4.13.0.0
-        - diagrams-postscript < 0 # via base-4.13.0.0 & lens-4.18.1
-        - diagrams-rasterific < 0 # via base-4.13.0.0 & lens-4.18.1 & optparse-applicative-0.15.1.0
-        - diagrams-solve < 0 # via base-4.13.0.0
-        - diagrams-svg < 0 # via base-4.13.0.0 & lens-4.18.1 & optparse-applicative-0.15.1.0
-        - force-layout < 0 # via base-4.13.0.0
-        - SVGFonts < 0 # via diagrams-core
+        - diagrams-lib
+        - diagrams-postscript
+        - diagrams-rasterific
+        - diagrams-solve
+        - diagrams-svg
+        - force-layout
+        - SVGFonts
         - haxr < 0 # GHC 8.4 via HaXml
         - MonadRandom
         - monoid-extras < 0 # via base-4.13.0.0
@@ -1566,7 +1566,7 @@ packages:
     "Jeffrey Rosenbluth <jeffrey.rosenbluth@gmail.com> @jeffreyrosenbluth":
         - palette < 0 # via base-4.13.0.0
         - diagrams-canvas
-        - svg-builder < 0 # via base-4.13.0.0
+        - svg-builder
 
     "Gabríel Arthúr Pétursson <gabriel@system.is> @polarina":
         - sdl2
@@ -4011,7 +4011,7 @@ packages:
 
     "Vitaly Bragilevsky <vit.bragilevsky@gmail.com> @bravit":
         - Chart
-        - Chart-diagrams < 0 # via diagrams-core & diagrams-lib & diagrams-postscript & diagrams-svg & svg-builder
+        - Chart-diagrams
 
     "Juri Chomé <juri.chome@gmail.com> @2mol":
         - msgpack < 0 # via base-4.13.0.0