diff --git a/build-constraints.yaml b/build-constraints.yaml
index 36454d22..0954b39d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2621,6 +2621,7 @@ packages:
         - irc-dcc
 
     "John Ky newhoggy@gmail.com @newhoggy":
+        - avro
         - bits-extra
         - hw-balancedparens
         - hw-bits
@@ -2640,6 +2641,7 @@ packages:
         - hw-rankselect-base
         - hw-succinct
         - hw-xml
+        - pure-zlib
 
     "Ismail Mustafa <ismailmustafa@rocketmail.com> @ismailmustafa":
         - handwriting