diff --git a/build-constraints.yaml b/build-constraints.yaml
index 4762488f..50393d8d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -787,6 +787,7 @@ packages:
     "Adam Bergmark <adam@bergmark.nl> @bergmark":
         - HUnit
         - aeson
+        - attoparsec-iso8601
         - feed
         - time-compat
         - through-text
@@ -3658,9 +3659,7 @@ packages:
         - fold-debounce-conduit < 0 # GHC 8.4 via base-4.11.0.0
         - force-layout < 0 # GHC 8.4 via base-4.11.0.0
         - friday-juicypixels < 0 # GHC 8.4 via base-4.11.0.0
-        - generic-aeson < 0 # GHC 8.4 via base-4.11.0.0
         - generic-random < 0 # GHC 8.4 via base-4.11.0.0
-        - generic-xmlpickler < 0 # GHC 8.4 via base-4.11.0.0
         - ghc-compact < 0 # GHC 8.4 via base-4.11.0.0
         - github-release < 0 # GHC 8.4 via base-4.11.0.0
         - github-webhook-handler < 0 # GHC 8.4 via base-4.11.0.0
@@ -3676,7 +3675,6 @@ packages:
         - hashable-time < 0 # GHC 8.4 via base-4.11.0.0
         - haskell-lsp < 0 # GHC 8.4 via base-4.11.0.0
         - hjsonpointer < 0 # GHC 8.4 via base-4.11.0.0
-        - hxt-pickle-utils < 0 # GHC 8.4 via base-4.11.0.0
         - indexed-list-literals < 0 # GHC 8.4 via base-4.11.0.0
         - json-stream < 0 # GHC 8.4 via base-4.11.0.0
         - kraken < 0 # GHC 8.4 via base-4.11.0.0
@@ -3738,7 +3736,6 @@ packages:
 #        - swagger2 < 0 # GHC 8.4 via base-4.11.0.0
         - tasty-rerun < 0 # GHC 8.4 via base-4.11.0.0
         - tdigest < 0 # GHC 8.4 via base-4.11.0.0
-        - through-text < 0 # GHC 8.4 via base-4.11.0.0
         - transformers-lift < 0 # GHC 8.4 via base-4.11.0.0
         - union < 0 # GHC 8.4 via base-4.11.0.0
         - uri-bytestring-aeson < 0 # GHC 8.4 via base-4.11.0.0