diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8620c9d6..b8ccc889 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5907,7 +5907,6 @@ packages:
         - chatwork < 0 # tried chatwork-0.1.3.5, but its *library* does not support: http-api-data-0.4.3
         - chatwork < 0 # tried chatwork-0.1.3.5, but its *library* does not support: http-client-0.7.11
         - chatwork < 0 # tried chatwork-0.1.3.5, but its *library* does not support: req-3.10.0
-        - check-email < 0 # tried check-email-1.0.2, but its *library* requires the disabled package: email-validate
         - chiphunk < 0 # tried chiphunk-0.1.4.0, but its *library* does not support: hashable-1.4.0.2
         - chronos < 0 # tried chronos-1.1.4, but its *library* does not support: base-4.16.1.0
         - chronos < 0 # tried chronos-1.1.4, but its *library* does not support: hashable-1.4.0.2
@@ -6780,7 +6779,6 @@ packages:
         - makefile < 0 # tried makefile-1.1.0.0, but its *library* does not support: attoparsec-0.14.4
         - mallard < 0 # tried mallard-0.6.1.1, but its *library* does not support: megaparsec-9.2.0
         - mallard < 0 # tried mallard-0.6.1.1, but its *library* requires the disabled package: Interpolation
-        - mandrill < 0 # tried mandrill-0.5.6.0, but its *library* requires the disabled package: email-validate
         - map-syntax < 0 # tried map-syntax-0.3, but its *library* does not support: base-4.16.1.0
         - markup < 0 # tried markup-4.2.0, but its *library* requires the disabled package: attoparsec-uri
         - marvin < 0 # tried marvin-0.2.5, but its *executable* requires the disabled package: mustache
@@ -6836,9 +6834,6 @@ packages:
         - misfortune < 0 # tried misfortune-0.1.1.2, but its *library* requires the disabled package: knob
         - miso < 0 # tried miso-1.8.1.0, but its *library* requires the disabled package: jsaddle
         - miso < 0 # tried miso-1.8.1.0, but its *library* requires the disabled package: servant
-        - mmark < 0 # tried mmark-0.0.7.4, but its *library* requires the disabled package: email-validate
-        - mmark-cli < 0 # tried mmark-cli-0.0.5.1, but its *executable* requires the disabled package: mmark
-        - mmark-ext < 0 # tried mmark-ext-0.2.1.4, but its *library* requires the disabled package: mmark
         - modify-fasta < 0 # tried modify-fasta-0.8.3.0, but its *executable* requires the disabled package: pipes-text
         - mole < 0 # tried mole-0.0.7, but its *executable* does not support: base-4.16.1.0
         - mole < 0 # tried mole-0.0.7, but its *executable* requires the disabled package: snap-server
@@ -7131,7 +7126,6 @@ packages:
         - require < 0 # tried require-0.4.11, but its *library* does not support: bytestring-0.11.3.0
         - resistor-cube < 0 # tried resistor-cube-0.0.1.4, but its *executable* requires the disabled package: lapack
         - rethinkdb-client-driver < 0 # tried rethinkdb-client-driver-0.0.25, but its *library* does not support: base-4.16.1.0
-        - rhbzquery < 0 # tried rhbzquery-0.4.4, but its *executable* requires the disabled package: email-validate
         - rhine < 0 # tried rhine-0.7.1, but its *library* does not support: base-4.16.1.0
         - rhine-gloss < 0 # tried rhine-gloss-0.7.1, but its *library* does not support: base-4.16.1.0
         - riak < 0 # tried riak-1.2.0.0, but its *library* does not support: aeson-2.0.3.0