diff --git a/src/main/java/org/cardanofoundation/conversions/ClasspathConversionsFactory.java b/src/main/java/org/cardanofoundation/conversions/ClasspathConversionsFactory.java
index 2603beb..27c6b8d 100644
--- a/src/main/java/org/cardanofoundation/conversions/ClasspathConversionsFactory.java
+++ b/src/main/java/org/cardanofoundation/conversions/ClasspathConversionsFactory.java
@@ -18,7 +18,7 @@ private ClasspathConversionsFactory() {}
 
   public static ConversionsConfig create(NetworkType networkType) {
     return switch (networkType) {
-      case MAINNET, PREPROD -> {
+      case MAINNET, PREPROD, PREVIEW, SANCHONET -> {
         var loader = ClasspathConversionsFactory.class.getClassLoader();
 
         var byronLink = loader.getResource(getGenesisEraClasspathLink(Byron, networkType));
diff --git a/src/main/java/org/cardanofoundation/conversions/domain/NetworkType.java b/src/main/java/org/cardanofoundation/conversions/domain/NetworkType.java
index f9130f2..e2579fc 100644
--- a/src/main/java/org/cardanofoundation/conversions/domain/NetworkType.java
+++ b/src/main/java/org/cardanofoundation/conversions/domain/NetworkType.java
@@ -5,6 +5,7 @@ public enum NetworkType {
   LEGACY_TESTNET(1_097_911_063L, 432_000L),
   PREPROD(1L, 432_000L),
   PREVIEW(2L, 86_400L),
+  SANCHONET(4L, 86_400L),
   DEV(42L, 432_000L);
 
   private final long protocolMagic;