diff --git a/go.mod b/go.mod
index 722d198bf..41ac65876 100644
--- a/go.mod
+++ b/go.mod
@@ -21,7 +21,7 @@ require (
 	github.com/hinshun/vt10x v0.0.0-20220228203356-1ab2cad5fd82
 	github.com/jonboulle/clockwork v0.5.0
 	github.com/ktr0731/go-fuzzyfinder v0.9.0
-	github.com/letsencrypt/boulder v0.20260413.0
+	github.com/letsencrypt/boulder v0.20260420.0
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/pkg/errors v0.9.1
 	github.com/sigstore/cosign/v2 v2.6.3
diff --git a/go.sum b/go.sum
index e008717fa..83db87746 100644
--- a/go.sum
+++ b/go.sum
@@ -534,8 +534,8 @@ github.com/ktr0731/go-fuzzyfinder v0.9.0 h1:JV8S118RABzRl3Lh/RsPhXReJWc2q0rbuipz
 github.com/ktr0731/go-fuzzyfinder v0.9.0/go.mod h1:uybx+5PZFCgMCSDHJDQ9M3nNKx/vccPmGffsXPn2ad8=
 github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
 github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
-github.com/letsencrypt/boulder v0.20260413.0 h1:KUxB0aJ8VUIJYPrSaZaO3IPuDrGfyXmNYyoSUGl6hkk=
-github.com/letsencrypt/boulder v0.20260413.0/go.mod h1:ZisB912eU757QUU0PTH+zq2JScaegVjPVKtPn2K1U3w=
+github.com/letsencrypt/boulder v0.20260420.0 h1:PMFy37+tQAfNe2Qks7NhTrKbULzhVmj19LbaZIaz0SE=
+github.com/letsencrypt/boulder v0.20260420.0/go.mod h1:ZisB912eU757QUU0PTH+zq2JScaegVjPVKtPn2K1U3w=
 github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de h1:9TO3cAIGXtEhnIaL+V+BEER86oLrvS+kWobKpbJuye0=
 github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de/go.mod h1:zAbeS9B/r2mtpb6U+EI2rYA5OAXxsYw6wTamcNW+zcE=
 github.com/lucasb-eyer/go-colorful v1.3.0 h1:2/yBRLdWBZKrf7gB40FoiKfAWYQ0lqNcbuQwVHXptag=
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 8ffe518f4..381744c59 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -936,7 +936,7 @@ github.com/ktr0731/go-ansisgr
 github.com/ktr0731/go-fuzzyfinder
 github.com/ktr0731/go-fuzzyfinder/matching
 github.com/ktr0731/go-fuzzyfinder/scoring
-# github.com/letsencrypt/boulder v0.20260413.0
+# github.com/letsencrypt/boulder v0.20260420.0
 ## explicit; go 1.25.0
 github.com/letsencrypt/boulder/core
 github.com/letsencrypt/boulder/core/proto