diff --git a/CHANGELOG.md b/CHANGELOG.md
index 97c807e8..d44adc51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -33,9 +33,15 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## Unreleased
 
+### Improvements
+
 * Updated Prov Protos to 1.19.0-rc2 [#522](https://github.com/provenance-io/explorer-service/pull/522)
 * Updated gRPC query to use `query` field instead of `events` field [#523](https://github.com/provenance-io/explorer-service/pull/523)
 
+### Bug Fixes
+
+* 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)
+
 ## [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/service/src/main/kotlin/io/provenance/explorer/service/ExplorerService.kt b/service/src/main/kotlin/io/provenance/explorer/service/ExplorerService.kt
index d90ace12..72a8befe 100644
--- a/service/src/main/kotlin/io/provenance/explorer/service/ExplorerService.kt
+++ b/service/src/main/kotlin/io/provenance/explorer/service/ExplorerService.kt
@@ -208,7 +208,9 @@ class ExplorerService(
         val typeUrl = govService.getUpgradeProtoType()
         val scheduledName = runBlocking { govClient.getIfUpgradeScheduled()?.plan?.name }
         val proposals = GovProposalRecord.findByProposalType(typeUrl)
-            .filter { it.status == Gov.ProposalStatus.PROPOSAL_STATUS_PASSED.name }
+            .filter {
+                it.status == Gov.ProposalStatus.PROPOSAL_STATUS_PASSED.name && it.getUpgradePlan() != null
+            }
         val knownReleases =
             CacheUpdateRecord.fetchCacheByKey(CacheKeys.CHAIN_RELEASES.key)?.cacheValue?.let {
                 VANILLA_MAPPER.readValue<List<GithubReleaseData>>(it)
diff --git a/service/src/main/kotlin/io/provenance/explorer/service/GovService.kt b/service/src/main/kotlin/io/provenance/explorer/service/GovService.kt
index 1b73b150..220eaa5f 100644
--- a/service/src/main/kotlin/io/provenance/explorer/service/GovService.kt
+++ b/service/src/main/kotlin/io/provenance/explorer/service/GovService.kt
@@ -3,6 +3,7 @@ package io.provenance.explorer.service
 import com.fasterxml.jackson.databind.node.ObjectNode
 import com.fasterxml.jackson.module.kotlin.readValue
 import com.google.protobuf.Any
+import com.google.protobuf.InvalidProtocolBufferException
 import com.google.protobuf.util.JsonFormat
 import cosmos.gov.v1.Gov
 import cosmos.gov.v1.Gov.VoteOption
@@ -15,6 +16,7 @@ import cosmos.gov.v1.weightedVoteOption
 import cosmos.gov.v1beta1.textProposal
 import cosmos.params.v1beta1.paramChange
 import cosmos.params.v1beta1.parameterChangeProposal
+import cosmos.upgrade.v1beta1.Upgrade
 import cosmos.upgrade.v1beta1.cancelSoftwareUpgradeProposal
 import cosmos.upgrade.v1beta1.plan
 import cosmos.upgrade.v1beta1.softwareUpgradeProposal
@@ -769,24 +771,42 @@ fun List<Any>.getProposalTypeList() = this.joinToString(", ") { msg -> msg.getPr
 
 fun String.toProposalTypeList() = this.split(", ")
 
-fun GovProposalRecord?.getUpgradePlan() =
-    this?.contentV1?.list
-        ?.mapNotNull { msg ->
-            when {
-                msg.typeUrl.contains("MsgSoftwareUpgrade") -> msg.toMsgSoftwareUpgrade().plan
-                msg.typeUrl.contains("gov.v1.MsgExecLegacyContent") ->
-                    msg.toMsgExecLegacyContent().content.let {
-                        if (it.typeUrl.contains("SoftwareUpgradeProposal")) {
-                            it.toSoftwareUpgradeProposal().plan
-                        } else {
-                            null
-                        }
-                    }
+fun GovProposalRecord?.getUpgradePlan(): Upgrade.Plan? {
+    return this?.let {
+        getUpgradePlanFromContentV1(it) ?: getUpgradePlanFromDataV1beta1(it)
+    }
+}
+
+private fun getUpgradePlanFromContentV1(record: GovProposalRecord): Upgrade.Plan? {
+    return record.contentV1?.list
+        ?.mapNotNull { msg -> processUpgradeProposalMessage(msg) }
+        ?.firstOrNull()
+}
+
+private fun getUpgradePlanFromDataV1beta1(record: GovProposalRecord): Upgrade.Plan? {
+    return try {
+        record.dataV1beta1?.content?.toSoftwareUpgradeProposal()?.plan
+    } catch (e: InvalidProtocolBufferException) {
+        logger().error("unable to unpack ${record.dataV1beta1?.content} to SoftwareUpgradeProposal")
+        null
+    }
+}
 
-                else -> null
+private fun processUpgradeProposalMessage(msg: Any): Upgrade.Plan? {
+    return when {
+        msg.typeUrl.contains("cosmos.upgrade.v1beta1.MsgSoftwareUpgrade") -> msg.toMsgSoftwareUpgrade().plan
+        msg.typeUrl.contains("cosmos.gov.v1.MsgExecLegacyContent") -> {
+            msg.toMsgExecLegacyContent().content.let {
+                if (it.typeUrl.contains("cosmos.upgrade.v1beta1.SoftwareUpgradeProposal")) {
+                    it.toSoftwareUpgradeProposal().plan
+                } else {
+                    null
+                }
             }
-        }?.first()
-        ?: this?.dataV1beta1?.content?.toSoftwareUpgradeProposal()?.plan
+        }
+        else -> null
+    }
+}
 
 fun String.toVoteMetadata() =
     if (this.isBlank()) {
diff --git a/service/src/main/kotlin/io/provenance/explorer/service/NotificationService.kt b/service/src/main/kotlin/io/provenance/explorer/service/NotificationService.kt
index 52afde58..aca5dfd0 100644
--- a/service/src/main/kotlin/io/provenance/explorer/service/NotificationService.kt
+++ b/service/src/main/kotlin/io/provenance/explorer/service/NotificationService.kt
@@ -47,7 +47,7 @@ class NotificationService(
         val currentHeight = blockService.getLatestBlockHeightIndexOrFromChain()
 
         val upgrades = GovProposalRecord.findByProposalType(govService.getUpgradeProtoType())
-            .filter { it.status == Gov.ProposalStatus.PROPOSAL_STATUS_PASSED.name }
+            .filter { it.status == Gov.ProposalStatus.PROPOSAL_STATUS_PASSED.name && it.getUpgradePlan() != null }
             .filter { proposal ->
                 val name = proposal.getUpgradePlan()!!.name
                 govClient.getIfUpgradeApplied(name).height == 0L &&