diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2d02ae66..03d742ee 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1060,17 +1060,16 @@ packages:
         - bugsnag-haskell
         - gravatar
         - load-env
-        - yesod-auth-oauth2
-        - yesod-markdown
+        - yesod-auth-oauth2 < 0 # hoauth2-1.16.0
+        - yesod-markdown < 0 # pandoc
         - yesod-paginator
         
         # Freckle packages I'm maintaining for us
-        - bcp47
-        - bcp47-orphans
-        - faktory
-        - graphula
-        - generics-eot # 3rd party, but needed by Graphula
-        - hspec-expectations-json
+        - bcp47 < 0 # aeson, megaparsec, text
+        - bcp47-orphans < 0 # esqueleto, text
+        - faktory < 0 # megaparsec
+        - graphula < 0 # aeson, base, bytestring, generics-eot, unliftio-core
+        - hspec-expectations-json # base, text
         - yesod-page-cursor
 
     "Felipe Lessa <felipe.lessa@gmail.com> @meteficha":