diff --git a/build-constraints.yaml b/build-constraints.yaml
index b485704a..cdf50482 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -684,8 +684,8 @@ packages:
 
     "Brent Yorgey <byorgey@gmail.com> @byorgey":
         - active
-        # - diagrams # lens 4.16
-        # - diagrams-builder # haskell-src-exts
+        - diagrams
+        - diagrams-builder
         - diagrams-cairo
         - diagrams-gtk
         - diagrams-contrib
@@ -1276,7 +1276,7 @@ packages:
 
     "Jeffrey Rosenbluth <jeffrey.rosenbluth@gmail.com> @jeffreyrosenbluth":
         - palette
-        # - diagrams-canvas # lens 4.16
+        - diagrams-canvas
         - svg-builder
 
     "Gabríel Arthúr Pétursson <gabriel@system.is> @polarina":