diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8545a257..e568e323 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -9,6 +9,9 @@ cabal-format-version: "3.0"
 
 # Constraints for brand new builds
 packages:
+    "Bernie Pope <florbitous@gmail.com> @bjpop":
+        - language-python
+
     "Nils Alex <nils@famalex.de> @nilsalex":
         - safe-tensor
 
@@ -79,7 +82,7 @@ packages:
         - lens-regex-pcre < 0 # via pcre-heavy
 
     "Emily Pillmore <emilypi@cohomolo.gy> @topos":
-        - base16
+        - base16 < 0.3.0.0 # https://github.com/commercialhaskell/stackage/issues/5513
         - base16-lens
         - base32
         - base32-lens
@@ -2204,7 +2207,8 @@ packages:
         - semirings
         - torsor
         - chronos
-        - refined
+        - refine
+        - these-skinny
 
     "Kostiantyn Rybnikov <k-bx@k-bx.com> @k-bx":
         - SHA