diff --git a/owasp/suppressions.xml b/owasp/suppressions.xml
index e6791d3d..c9656353 100644
--- a/owasp/suppressions.xml
+++ b/owasp/suppressions.xml
@@ -21,7 +21,8 @@
         <cve>CVE-2022-34305</cve>
     </suppress>
     <suppress>
-        <notes>Bug is fixed with SnameYAML 1.32, but CVE Matcher is invalid</notes>
+        <notes>DGCG is not using YML User Input, Bug is fixed with SnameYAML 1.32, but CVE Matcher is invalid</notes>
+        <cve>CVE-2022-38751</cve>
         <cve>CVE-2022-38752</cve>
     </suppress>
 
diff --git a/src/test/java/eu/europa/ec/dgc/gateway/service/SignerInformationServiceTest.java b/src/test/java/eu/europa/ec/dgc/gateway/service/SignerInformationServiceTest.java
index abc4d9b7..61a47d2c 100644
--- a/src/test/java/eu/europa/ec/dgc/gateway/service/SignerInformationServiceTest.java
+++ b/src/test/java/eu/europa/ec/dgc/gateway/service/SignerInformationServiceTest.java
@@ -33,6 +33,7 @@
 import java.security.PrivateKey;
 import java.security.cert.X509Certificate;
 import java.time.ZonedDateTime;
+import java.time.temporal.ChronoUnit;
 import java.util.Base64;
 import java.util.List;
 import java.util.Optional;
@@ -68,9 +69,9 @@ class SignerInformationServiceTest {
     private static final String countryCode = "EU";
     private static final String dummySignature = "randomStringAsSignatureWhichIsNotValidatedInServiceLevel";
 
-    private static final ZonedDateTime now = ZonedDateTime.now();
-    private static final ZonedDateTime nowMinusOneMinute = ZonedDateTime.now().minusMinutes(1);
-    private static final ZonedDateTime nowMinusOneHour = ZonedDateTime.now().minusHours(1);
+    private final static ZonedDateTime now = ZonedDateTime.now().truncatedTo(ChronoUnit.SECONDS);
+    private final static ZonedDateTime nowMinusOneMinute = now.minusMinutes(1);
+    private final static ZonedDateTime nowMinusOneHour = now.minusHours(1);
 
     @BeforeEach
     void setUp() {