diff --git a/internal/rosa/pcre2.go b/internal/rosa/pcre2.go
index 406129a..c7868b1 100644
--- a/internal/rosa/pcre2.go
+++ b/internal/rosa/pcre2.go
@@ -6,8 +6,8 @@ import (
 
 func (t Toolchain) newPCRE2() pkg.Artifact {
 	const (
-		version  = "10.47"
-		checksum = "IbC24vVayju6nB9EhrBPSDexk22wDecdpyrjgC3nCZXkwTnUjq4CD2q5sopqu6CW"
+		version  = "10.43"
+		checksum = "iyNw-POPSJwiZVJfUK5qACA6q2uMzP-84WieimN_CskaEkuw5fRnRTZhEv6ry2Yo"
 	)
 	return t.NewViaMake("pcre2", version, pkg.NewHTTPGetTar(
 		nil, "https://github.com/PCRE2Project/pcre2/releases/download/"+