diff --git a/CHANGELOG.md b/CHANGELOG.md
index 274b45e0..4a3349b9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -43,7 +43,8 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 * Fixed issue with Proto deserialization incorrectly matching `cosmos.upgrade.v1beta1.CancelSoftwareUpgradeProposal` as `cosmos.upgrade.v1beta1.SoftwareUpgradeProposal`, ensuring accurate type URL handling. [#524](https://github.com/provenance-io/explorer-service/pull/524)
 * Update osmosis pricing query with new required field `coinMinimalDenom` [#526](https://github.com/provenance-io/explorer-service/pull/526)
-* Fix group save tx processing [#526](https://github.com/provenance-io/explorer-service/pull/528), [#526](https://github.com/provenance-io/explorer-service/pull/529)
+* Fix group save tx processing [#526](https://github.com/provenance-io/explorer-service/issues/528), [#526](https://github.com/provenance-io/explorer-service/issues/529)
+* Fix validator proposer priority number type [#530](https://github.com/provenance-io/explorer-service/issues/530)
 
 ## [v5.10.0](https://github.com/provenance-io/explorer-service/releases/tag/v5.10.0) - 2024-06-11
 ### Release Name: Fridtjof Nansen
diff --git a/api-model/src/main/kotlin/io/provenance/explorer/model/ValidatorModels.kt b/api-model/src/main/kotlin/io/provenance/explorer/model/ValidatorModels.kt
index 40d79fb6..76ce00b2 100644
--- a/api-model/src/main/kotlin/io/provenance/explorer/model/ValidatorModels.kt
+++ b/api-model/src/main/kotlin/io/provenance/explorer/model/ValidatorModels.kt
@@ -10,7 +10,7 @@ data class ValidatorSummary(
     val moniker: String,
     val addressId: String,
     val consensusAddress: String,
-    val proposerPriority: Int?,
+    val proposerPriority: Long?,
     val votingPower: CountTotal?,
     val commission: String,
     val bondedTokens: CountStrTotal,
@@ -70,7 +70,7 @@ data class ValidatorAtHeight(
     val moniker: String,
     val addressId: String,
     val consensusAddress: String,
-    val proposerPriority: Int?,
+    val proposerPriority: Long?,
     val votingPower: CountTotal?,
     val imgUrl: String?,
     val isProposer: Boolean = false,
diff --git a/service/src/main/kotlin/io/provenance/explorer/service/ValidatorService.kt b/service/src/main/kotlin/io/provenance/explorer/service/ValidatorService.kt
index cc284f18..61c3f3b8 100644
--- a/service/src/main/kotlin/io/provenance/explorer/service/ValidatorService.kt
+++ b/service/src/main/kotlin/io/provenance/explorer/service/ValidatorService.kt
@@ -334,7 +334,7 @@ class ValidatorService(
             moniker = stakingVal.json.description.moniker,
             addressId = stakingVal.operatorAddress,
             consensusAddress = stakingVal.consensusAddr,
-            proposerPriority = validator?.proposerPriority?.toInt(),
+            proposerPriority = validator?.proposerPriority,
             votingPower = if (validator != null) {
                 CountTotal(
                     validator.votingPower.toBigInteger(),