diff --git a/build-constraints.yaml b/build-constraints.yaml
index b1a1e8ad..b11c7aa8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4691,7 +4691,7 @@ packages:
         - bitwise-enum
 
     "Shlomo Shuck <stevenjshuck@gmail.com> @sjshuck":
-        - pcre2
+        - pcre2 < 2.2 # https://github.com/commercialhaskell/stackage/issues/6593
 
     "Emil Axelsson <78emil@gmail.com> @emax":
         - tree-view