diff --git a/adoptium-api-v3-persistence/src/main/kotlin/net/adoptium/api/v3/dataSources/persitence/mongo/UpdatedInfo.kt b/adoptium-api-v3-persistence/src/main/kotlin/net/adoptium/api/v3/dataSources/persitence/mongo/UpdatedInfo.kt
index 0d8d63683..235757e87 100644
--- a/adoptium-api-v3-persistence/src/main/kotlin/net/adoptium/api/v3/dataSources/persitence/mongo/UpdatedInfo.kt
+++ b/adoptium-api-v3-persistence/src/main/kotlin/net/adoptium/api/v3/dataSources/persitence/mongo/UpdatedInfo.kt
@@ -1,16 +1,16 @@
 package net.adoptium.api.v3.dataSources.persitence.mongo
 
-import java.math.BigInteger
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties
 import java.time.ZoneId
 import java.time.ZonedDateTime
 import java.time.format.DateTimeFormatter
 import java.util.*
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 data class UpdatedInfo(
     val time: ZonedDateTime,
     val checksum: String,
     val hashCode: Int,
-    val hexChecksum: String? = BigInteger(1, Base64.getDecoder().decode(checksum)).toString(16),
     val lastModified: Date? = Date.from(time.toInstant()),
     val lastModifiedFormatted: String? = lastModified
         ?.toInstant()
diff --git a/adoptium-frontend-parent/adoptium-api-v3-frontend/src/main/kotlin/net/adoptium/api/v3/CacheControlService.kt b/adoptium-frontend-parent/adoptium-api-v3-frontend/src/main/kotlin/net/adoptium/api/v3/CacheControlService.kt
index 6f473ecc6..b175fcfa8 100644
--- a/adoptium-frontend-parent/adoptium-api-v3-frontend/src/main/kotlin/net/adoptium/api/v3/CacheControlService.kt
+++ b/adoptium-frontend-parent/adoptium-api-v3-frontend/src/main/kotlin/net/adoptium/api/v3/CacheControlService.kt
@@ -33,8 +33,11 @@ class CacheControlService @Inject constructor(private var apiDataStore: APIDataS
 
     private fun calculateEtag(requestContext: ContainerRequestContext): String {
         val md = MessageDigest.getInstance("SHA1")
-        if (apiDataStore.getUpdateInfo().hexChecksum != null) {
-            md.update(HexFormat.of().parseHex(apiDataStore.getUpdateInfo().hexChecksum))
+        try {
+            md.update(Base64.getDecoder().decode(apiDataStore.getUpdateInfo().checksum))
+        } catch (e: Exception) {
+            // Should not happen as the hex checksum should always be a valid Base64 string
+            md.update(apiDataStore.getUpdateInfo().checksum.toByteArray())
         }
         md.update(requestContext.uriInfo.requestUri.toString().toByteArray())
         return BigInteger(1, md.digest()).toString(16)
@@ -46,12 +49,12 @@ class CacheControlService @Inject constructor(private var apiDataStore: APIDataS
 
             val lastModified = apiDataStore.getUpdateInfo().lastModified
 
-            if (lastModified == null || etag == null) {
+            if (lastModified == null) {
                 return
             }
 
             val builder =
-                requestContext!!
+                requestContext
                     .request
                     .evaluatePreconditions(lastModified, EntityTag(etag))
 
@@ -70,8 +73,7 @@ class CacheControlService @Inject constructor(private var apiDataStore: APIDataS
             ecc.maxAge = MAX_CACHE_AGE_IN_SEC
             ecc.sMaxAge = MAX_CACHE_AGE_IN_SEC
 
-            if (apiDataStore.getUpdateInfo().hexChecksum == null ||
-                apiDataStore.getUpdateInfo().lastModifiedFormatted == null) {
+            if (apiDataStore.getUpdateInfo().lastModifiedFormatted == null) {
                 return
             }