diff --git a/Dockerfile b/Dockerfile
index 5ac04d7..0dd6172 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,4 @@ FROM scratch
 COPY --from=builder /checker-email-keys /checker-email-keys
 USER 65534:65534
 EXPOSE 8080
-HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
-  CMD ["/checker-email-keys", "-healthcheck"]
 ENTRYPOINT ["/checker-email-keys"]
diff --git a/checker/rules_test.go b/checker/rules_test.go
index 7aee591..c597f8c 100644
--- a/checker/rules_test.go
+++ b/checker/rules_test.go
@@ -298,8 +298,8 @@ func TestRuleEvaluate_KindFiltering(t *testing.T) {
 			continue
 		}
 		states := r.Evaluate(context.Background(), obs, sdk.CheckerOptions{})
-		if len(states) != 1 || states[0].Status != sdk.StatusUnknown {
-			t.Fatalf("PGP rule on SMIMEA kind should yield single Unknown state, got %+v", states)
+		if len(states) != 1 || states[0].Status != sdk.StatusInfo {
+			t.Fatalf("PGP rule on SMIMEA kind should yield single Info state, got %+v", states)
 		}
 	}
 }
diff --git a/go.mod b/go.mod
index d6f2629..d3155f3 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module git.happydns.org/checker-email-keys
 go 1.25.0
 
 require (
-	git.happydns.org/checker-sdk-go v1.5.0
+	git.happydns.org/checker-sdk-go v1.4.0
 	github.com/ProtonMail/go-crypto v1.1.0-alpha.0
 	github.com/miekg/dns v1.1.72
 )
diff --git a/go.sum b/go.sum
index ee33948..a091007 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-git.happydns.org/checker-sdk-go v1.5.0 h1:5uD5Cm6xJ+lwnhbJ09iCXGHbYS9zRh+Yh0NeBHkAPBY=
-git.happydns.org/checker-sdk-go v1.5.0/go.mod h1:aNAcfYFfbhvH9kJhE0Njp5GX0dQbxdRB0rJ0KvSC5nI=
+git.happydns.org/checker-sdk-go v1.4.0 h1:sO8EnF3suhNgYLRsbmCZWJOymH/oNMrOUqj3FEzJArs=
+git.happydns.org/checker-sdk-go v1.4.0/go.mod h1:aNAcfYFfbhvH9kJhE0Njp5GX0dQbxdRB0rJ0KvSC5nI=
 github.com/ProtonMail/go-crypto v1.1.0-alpha.0 h1:nHGfwXmFvJrSR9xu8qL7BkO4DqTHXE9N5vPhgY2I+j0=
 github.com/ProtonMail/go-crypto v1.1.0-alpha.0/go.mod h1:rA3QumHc/FZ8pAHreoekgiAbzpNsfQAosU5td4SnOrE=
 github.com/cloudflare/circl v1.3.7 h1:qlCDlTPz2n9fu58M0Nh1J/JzcFpfgkFHHX3O35r5vcU=