diff --git a/pom.xml b/pom.xml
index 18ee9b9..73073bc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -14,7 +14,7 @@
 
     <!-- Dependency versions -->
     <avro-buddy-core.version>1.1.0</avro-buddy-core.version>
-    <dapla-dlp-pseudo-func.version>1.2.3</dapla-dlp-pseudo-func.version>
+    <dapla-dlp-pseudo-func.version>1.2.4</dapla-dlp-pseudo-func.version>
     <dapla-storage-client.version>5.1.2</dapla-storage-client.version>
     <guava.version>31.1-jre</guava.version>
     <jsonassert.version>1.5.1</jsonassert.version>
@@ -189,6 +189,12 @@
       <version>${jsonassert.version}</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <version>5.3.1</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>
diff --git a/src/main/java/no/ssb/dlp/pseudo/core/func/PseudoFuncConfigFactory.java b/src/main/java/no/ssb/dlp/pseudo/core/func/PseudoFuncConfigFactory.java
index 7d3447a..d5f76fa 100644
--- a/src/main/java/no/ssb/dlp/pseudo/core/func/PseudoFuncConfigFactory.java
+++ b/src/main/java/no/ssb/dlp/pseudo/core/func/PseudoFuncConfigFactory.java
@@ -49,6 +49,7 @@ private static PseudoFuncConfigPreset sidMappingPseudoFuncConfigPreset(String fu
         return PseudoFuncConfigPreset.builder(funcName, MapFunc.class)
                 .staticParam(MapFuncConfig.Param.CONTEXT, "sid")
                 .requiredParam(String.class, TinkFpeFuncConfig.Param.KEY_ID)
+                .optionalParam(String.class, MapFuncConfig.Param.VERSION_TIMESTAMP)
                 .build();
     }
 
diff --git a/src/test/java/no/ssb/dlp/pseudo/core/func/MapFuncTest.java b/src/test/java/no/ssb/dlp/pseudo/core/func/MapFuncTest.java
new file mode 100644
index 0000000..795203c
--- /dev/null
+++ b/src/test/java/no/ssb/dlp/pseudo/core/func/MapFuncTest.java
@@ -0,0 +1,38 @@
+package no.ssb.dlp.pseudo.core.func;
+
+import no.ssb.dapla.dlp.pseudo.func.PseudoFunc;
+import no.ssb.dapla.dlp.pseudo.func.PseudoFuncConfig;
+import no.ssb.dapla.dlp.pseudo.func.PseudoFuncFactory;
+import no.ssb.dapla.dlp.pseudo.func.PseudoFuncInput;
+import no.ssb.dapla.dlp.pseudo.func.map.MapFunc;
+import no.ssb.dapla.dlp.pseudo.func.map.Mapper;
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+
+import java.util.Map;
+
+import static org.mockito.Mockito.*;
+
+public class MapFuncTest {
+    private PseudoFunc f(String funcDecl) {
+        PseudoFuncConfig config = PseudoFuncConfigFactory.get(funcDecl);
+        return PseudoFuncFactory.create(config);
+    }
+
+    @Test
+    void mapFuncWithTimestamp() {
+        final Mapper mockMapper = mock(Mapper.class);
+        try (var mapFunc = mockStatic(MapFunc.class)) {
+            mapFunc.when(() -> MapFunc.loadMapper()).thenReturn(mockMapper);
+            String funcDeclStr = "map-sid(keyId=1284924461, versionTimestamp=test)";
+            PseudoFunc func = f(funcDeclStr);
+            func.init(PseudoFuncInput.of("50607080901"));
+        }
+        // Check that the mockMapper has received the versionTimestamp
+        ArgumentCaptor<Map> argumentsCaptured = ArgumentCaptor.forClass(Map.class);
+        verify(mockMapper).setConfig(argumentsCaptured.capture());
+        assert argumentsCaptured.getValue().containsKey("versionTimestamp");
+        // Check that the init method was called
+        verify(mockMapper).init(eq("50607080901"));
+    }
+}