diff --git a/RadixWallet.xcodeproj/project.pbxproj b/RadixWallet.xcodeproj/project.pbxproj
index 584dbc4f3c..7d25f0e76a 100644
--- a/RadixWallet.xcodeproj/project.pbxproj
+++ b/RadixWallet.xcodeproj/project.pbxproj
@@ -9178,14 +9178,6 @@
 				version = 6.13.2;
 			};
 		};
-		5B3047A72CD26EB1009FAF90 /* XCRemoteSwiftPackageReference "sargon" */ = {
-			isa = XCRemoteSwiftPackageReference;
-			repositoryURL = "https://github.com/radixdlt/sargon/";
-			requirement = {
-				kind = exactVersion;
-				version = 1.1.44;
-			};
-		};
 		5B634A922C91D2A0004B2FBC /* XCRemoteSwiftPackageReference "ScreenshotPreventing-iOS" */ = {
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/Sajjon/ScreenshotPreventing-iOS";
@@ -9207,7 +9199,7 @@
 			repositoryURL = "https://github.com/radixdlt/sargon";
 			requirement = {
 				kind = exactVersion;
-				version = 1.1.47;
+				version = 1.1.48;
 			};
 		};
 		A415574E2B757C5E0040AD4E /* XCRemoteSwiftPackageReference "swift-composable-architecture" */ = {
@@ -9431,7 +9423,6 @@
 		};
 		5B4E1D1E2CB7FE8E002FAC2E /* Sargon */ = {
 			isa = XCSwiftPackageProductDependency;
-			package = 5B4E1D1D2CB7FE8E002FAC2E /* XCRemoteSwiftPackageReference "sargon" */;
 			productName = Sargon;
 		};
 		5B634A932C91D2A0004B2FBC /* ScreenshotPreventing */ = {
diff --git a/RadixWallet.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved b/RadixWallet.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
index 993661fd9a..6ccbced6a8 100644
--- a/RadixWallet.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
+++ b/RadixWallet.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -114,8 +114,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/radixdlt/sargon",
       "state" : {
-        "revision" : "95c81df01619eac9923ad0211de74428764659da",
-        "version" : "1.1.47"
+        "revision" : "a8f7bba9d7ae58ab0cf21ef47e0d87e59d7f3198",
+        "version" : "1.1.48"
       }
     },
     {
diff --git a/RadixWallet/Clients/DappInteractionClient/DappInteractionClient+Interfce.swift b/RadixWallet/Clients/DappInteractionClient/DappInteractionClient+Interfce.swift
index a6e6fb1945..e17c5bdf49 100644
--- a/RadixWallet/Clients/DappInteractionClient/DappInteractionClient+Interfce.swift
+++ b/RadixWallet/Clients/DappInteractionClient/DappInteractionClient+Interfce.swift
@@ -85,10 +85,16 @@ extension DappInteractionClient {
 			case dAppValidationError(String)
 			case badContent(BadContent)
 			case invalidPersonaOrAccounts
+			case invalidPreAuthorization(InvalidPreAuthorization)
 
 			enum BadContent: Sendable, Hashable {
 				case numberOfAccountsInvalid
 			}
+
+			enum InvalidPreAuthorization: Sendable, Hashable {
+				case expirationTooClose
+				case expired
+			}
 		}
 	}
 }
diff --git a/RadixWallet/Clients/DappInteractionClient/DappInteractionClient+Live.swift b/RadixWallet/Clients/DappInteractionClient/DappInteractionClient+Live.swift
index 4370f77c25..d71b3d220e 100644
--- a/RadixWallet/Clients/DappInteractionClient/DappInteractionClient+Live.swift
+++ b/RadixWallet/Clients/DappInteractionClient/DappInteractionClient+Live.swift
@@ -123,6 +123,16 @@ extension DappInteractionClient {
 				return invalidRequest(.invalidPersonaOrAccounts)
 			}
 
+		case let .preAuthorization(preAuthorization):
+			switch preAuthorization.request.expiration.getStatus() {
+			case .valid:
+				break
+			case .expirationTooClose:
+				return invalidRequest(.invalidPreAuthorization(.expirationTooClose))
+			case .expired:
+				return invalidRequest(.invalidPreAuthorization(.expired))
+			}
+
 		default:
 			break
 		}
diff --git a/RadixWallet/Features/DappInteractionFeature/Interactor/DappInteractor.swift b/RadixWallet/Features/DappInteractionFeature/Interactor/DappInteractor.swift
index a423e41924..0eca1d11f7 100644
--- a/RadixWallet/Features/DappInteractionFeature/Interactor/DappInteractor.swift
+++ b/RadixWallet/Features/DappInteractionFeature/Interactor/DappInteractor.swift
@@ -382,6 +382,10 @@ extension DappInteractionClient.ValidatedDappRequest.InvalidRequestReason {
 			.invalidRequest
 		case .invalidPersonaOrAccounts:
 			.invalidPersonaOrAccounts
+		case .invalidPreAuthorization(.expirationTooClose):
+			.subintentExpirationTooClose
+		case .invalidPreAuthorization(.expired):
+			.expiredSubintent
 		}
 	}
 
@@ -406,10 +410,8 @@ extension DappInteractionClient.ValidatedDappRequest.InvalidRequestReason {
 			L10n.DAppRequest.ValidationOutcome.subtitleIncompatibleVersion
 		case .wrongNetworkID:
 			L10n.DAppRequest.ValidationOutcome.subtitleWrongNetworkID
-		case .invalidOrigin, .invalidDappDefinitionAddress, .dAppValidationError:
+		case .invalidOrigin, .invalidDappDefinitionAddress, .dAppValidationError, .invalidPersonaOrAccounts, .invalidPreAuthorization:
 			shortExplanation
-		case .invalidPersonaOrAccounts:
-			L10n.DAppRequest.ValidationOutcome.invalidPersonaOrAccoubts
 		}
 	}
 
@@ -436,7 +438,7 @@ extension DappInteractionClient.ValidatedDappRequest.InvalidRequestReason {
 			L10n.DAppRequest.ValidationOutcome.devExplanationInvalidDappDefinitionAddress(invalidAddress)
 		case let .dAppValidationError(underlyingError):
 			"\(L10n.DAppRequest.ValidationOutcome.invalidRequestMessage): \(underlyingError)"
-		case .wrongNetworkID, .invalidPersonaOrAccounts:
+		case .wrongNetworkID, .invalidPersonaOrAccounts, .invalidPreAuthorization:
 			shortExplanation
 		}
 	}
@@ -461,6 +463,10 @@ extension DappInteractionClient.ValidatedDappRequest.InvalidRequestReason {
 			L10n.DAppRequest.RequestWrongNetworkAlert.message(networkName(for: ce), networkName(for: wallet))
 		case .invalidPersonaOrAccounts:
 			L10n.DAppRequest.ValidationOutcome.invalidPersonaOrAccoubts
+		case .invalidPreAuthorization(.expirationTooClose):
+			L10n.DAppRequest.ValidationOutcome.preAuthorizationExpirationTooClose
+		case .invalidPreAuthorization(.expired):
+			L10n.DAppRequest.ValidationOutcome.preAuthorizationExpired
 		}
 	}
 
diff --git a/RadixWallet/Features/PreAuthorizationReview/PreAuthorizationReview.swift b/RadixWallet/Features/PreAuthorizationReview/PreAuthorizationReview.swift
index 84b714ddee..07b9e5ebfb 100644
--- a/RadixWallet/Features/PreAuthorizationReview/PreAuthorizationReview.swift
+++ b/RadixWallet/Features/PreAuthorizationReview/PreAuthorizationReview.swift
@@ -139,7 +139,7 @@ struct PreAuthorizationReview: Sendable, FeatureReducer {
 			switch state.expiration {
 			case let .atTime(value):
 				// Trigger expiration countdown effect
-				let expirationDate = value.unixTimestampSeconds
+				let expirationDate = value.date
 				state.secondsToExpiration = Int(expirationDate.timeIntervalSinceNow)
 				effects.append(startTimer(expirationDate: expirationDate))
 			case .afterDelay:
@@ -269,7 +269,7 @@ extension PreAuthorizationReview.State {
 	var isExpired: Bool {
 		switch expiration {
 		case let .atTime(value):
-			value.unixTimestampSeconds <= Date.now
+			value.date <= Date.now
 		case .afterDelay:
 			false
 		}