diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2b204087..30dab1cb 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2329,8 +2329,8 @@ packages:
         - hsyslog
         - jailbreak-cabal
         - json-autotype
-        - lambdabot-core
-        - lambdabot-irc-plugins
+        - lambdabot-core < 0
+        - lambdabot-irc-plugins < 0
         - language-nix
         - logging-facade-syslog
         - MonadPrompt
@@ -4514,7 +4514,7 @@ packages:
 
     "Stackage upper bounds":
         # https://github.com/commercialhaskell/stackage/issues/4427
-        - network < 3.0.0.0
+        - network < 2.8.0.1
         - hsdev < 0.3.3.0
         - network-bsd < 2.8.1.0