diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2405aa5e..a4abbbe2 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -44,7 +44,7 @@ packages:
         - arrowp-qq
         - clr-marshal
         - clr-host
-        # hexml-lens # via snap-server, https://github.com/fpco/stackage/issues/2738
+        - hexml-lens
         - hp2pretty # With permission of Claude Heiland-Allend
         - floatshow # https://bitbucket.org/dafis/floatshow/issues/1/add-to-stackage
         # - threepenny-editors # GHC 8.2.1 via threepenny-gui
@@ -157,6 +157,7 @@ packages:
         - path
         - present
         # - threepenny-gui # GHC 8.2.1 via snap-server
+        - snap-server
 
     "Joe M <joe9mail@gmail.com> @joe9":
         []
@@ -401,7 +402,7 @@ packages:
         # - profiteur # GHC 8.2.1 via ghc-prof
         - psqueues
         - websockets
-        # - websockets-snap # GHC 8.2.1 via snap-server
+        - websockets-snap
 
     "Sibi Prabakaran <sibi@psibi.in> @psibi":
         - download
@@ -960,8 +961,8 @@ packages:
         - wai-middleware-caching-lru
         # - wai-middleware-caching-redis # GHC 8.2.1 via hedis
         # not package maintainer
-        # - ekg # GHC 8.2.1 via snap-server
-        # - ekg-json # GHC 8.2.1
+        - ekg
+        - ekg-json
 
     "Paul Rouse <pgr@doynton.org> @paul-rouse":
         - mysql
@@ -1206,7 +1207,7 @@ packages:
         - google-cloud
         - kraken
         - libinfluxdb
-        # - mole # via snap, snap-server, heist, xmlhtml,
+        # - mole # via snap, heist, xmlhtml,
         - publicsuffix
         - rethinkdb-client-driver
         - snap-blaze
@@ -1299,7 +1300,7 @@ packages:
         # - waitra # GHC 8.2.1
 
         # scrive/log
-        # - log # via bloodhound: bounds: vector # GHC 8.2.1 via ekg via snap-server
+        # - log # via bloodhound: bounds: vector # GHC 8.2.1 via ekg
         - log-base
         # - log-elasticsearch # via bloodhound: bounds: vector # GHC 8.2.1
         - log-postgres
@@ -2181,7 +2182,7 @@ packages:
 
     "Andrew Cowie <andrew@operationaldynamics.com> @afcowie":
         - http-common
-        # - http-streams # GHC 8.2.1 via snap-server
+        # - http-streams # GHC 8.2.1
 
     # "Devan Stormont <stormont@gmail.com> @stormont":
         # - forecast-io # bounds: aeson 1.0
@@ -3073,7 +3074,7 @@ packages:
         - snowtify
 
     "Mitsutoshi Aoe <maoe@foldr.in> @maoe":
-        # - sensu-run # GHC 8.2.1 via wreq, time, snap-server
+        # - sensu-run # GHC 8.2.1 via wreq, time
         - viewprof
 
     "Dylan Simon <dylan-stack@dylex.net> @dylex":