diff --git a/pgpainless-core/src/test/java/investigations/SignMessageWithCreationTimeOffsetTest.java b/pgpainless-core/src/test/java/investigations/SignMessageWithCreationTimeOffsetTest.java
index 67ef5123..4077408e 100644
--- a/pgpainless-core/src/test/java/investigations/SignMessageWithCreationTimeOffsetTest.java
+++ b/pgpainless-core/src/test/java/investigations/SignMessageWithCreationTimeOffsetTest.java
@@ -27,6 +27,7 @@ import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.util.Date;
 
+import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class SignMessageWithCreationTimeOffsetTest {
@@ -74,4 +75,53 @@ public class SignMessageWithCreationTimeOffsetTest {
         MessageMetadata metadata = decIn.getMetadata();
         assertTrue(metadata.isVerifiedSignedBy(key.toCertificate()));
     }
+
+    @Test
+    public void testSignMessageInFuture() throws PGPException, IOException {
+        PGPainless api = PGPainless.getInstance();
+        Date now = new Date();
+        Date inOneHour = new Date(now.getTime() + 1000 * 60 * 60);
+
+        OpenPGPKey key = api.generateKey().modernKeyRing("Alice <alice@pgpainless.org>");
+
+        ByteArrayOutputStream bOut = new ByteArrayOutputStream();
+        EncryptionStream encOut = api.generateMessage()
+                .onOutputStream(bOut)
+                .withOptions(ProducerOptions.sign(SigningOptions.get()
+                        .addInlineSignature(SecretKeyRingProtector.unprotectedKeys(), key, null, DocumentSignatureType.BINARY_DOCUMENT, new BaseSignatureSubpackets.Callback() {
+                            @Override
+                            public void modifyHashedSubpackets(@NotNull BaseSignatureSubpackets hashedSubpackets) {
+                                hashedSubpackets.setSignatureCreationTime(inOneHour);
+                            }
+                        })));
+
+        encOut.write("Hello, World!\n".getBytes(StandardCharsets.UTF_8));
+        encOut.close();
+
+        ByteArrayInputStream bIn = new ByteArrayInputStream(bOut.toByteArray());
+        DecryptionStream decIn = api.processMessage()
+                .onInputStream(bIn)
+                .withOptions(ConsumerOptions.get()
+                        .addVerificationCert(key.toCertificate()));
+
+        Streams.drain(decIn);
+        decIn.close();
+
+        MessageMetadata metadata = decIn.getMetadata();
+        assertFalse(metadata.isVerifiedSignedBy(key.toCertificate()));
+
+        // Try again, adjusting validity period
+        bIn = new ByteArrayInputStream(bOut.toByteArray());
+        decIn = api.processMessage()
+                .onInputStream(bIn)
+                .withOptions(ConsumerOptions.get()
+                        .verifyNotAfter(inOneHour) // is set to 'now' by default, so to allow verifying future sigs, we need to adjust
+                        .addVerificationCert(key.toCertificate()));
+
+        Streams.drain(decIn);
+        decIn.close();
+
+        metadata = decIn.getMetadata();
+        assertTrue(metadata.isVerifiedSignedBy(key.toCertificate()));
+    }
 }