diff --git a/AltServer/Devices/ALTDeviceManager.mm b/AltServer/Devices/ALTDeviceManager.mm
index 2e088d7b..c1aea676 100644
--- a/AltServer/Devices/ALTDeviceManager.mm
+++ b/AltServer/Devices/ALTDeviceManager.mm
@@ -95,12 +95,12 @@ NSErrorDomain const ALTDeviceErrorDomain = @"com.rileytestut.ALTDeviceError";
                     
                     if (misagent_install(mis, pdata) == MISAGENT_E_SUCCESS)
                     {
-                        NSLog(@"Reinstalled profile: %@", provisioningProfile.identifier);
+                        NSLog(@"Reinstalled profile: %@", provisioningProfile.UUID);
                     }
                     else
                     {
                         int code = misagent_get_status_code(mis);
-                        NSLog(@"Failed to reinstall provisioning profile %@. (%@)", provisioningProfile.identifier, @(code));
+                        NSLog(@"Failed to reinstall provisioning profile %@. (%@)", provisioningProfile.UUID, @(code));
                     }
                 }
                 
@@ -315,14 +315,14 @@ NSErrorDomain const ALTDeviceErrorDomain = @"com.rileytestut.ALTDeviceError";
                     continue;
                 }
 
-                if (misagent_remove(mis, provisioningProfile.identifier.UTF8String) == MISAGENT_E_SUCCESS)
+                if (misagent_remove(mis, provisioningProfile.UUID.UUIDString.lowercaseString.UTF8String) == MISAGENT_E_SUCCESS)
                 {
-                    NSLog(@"Removed provisioning profile: %@", provisioningProfile.identifier);
+                    NSLog(@"Removed provisioning profile: %@", provisioningProfile.UUID);
                 }
                 else
                 {
                     int code = misagent_get_status_code(mis);
-                    NSLog(@"Failed to remove provisioning profile %@. Error Code: %@", provisioningProfile.identifier, @(code));
+                    NSLog(@"Failed to remove provisioning profile %@. Error Code: %@", provisioningProfile.UUID, @(code));
                 }
             }
 
diff --git a/AltStore/Operations/ResignAppOperation.swift b/AltStore/Operations/ResignAppOperation.swift
index d7897637..03ee2bf8 100644
--- a/AltStore/Operations/ResignAppOperation.swift
+++ b/AltStore/Operations/ResignAppOperation.swift
@@ -203,7 +203,25 @@ private extension ResignAppOperation
     func fetchProvisioningProfile(for appID: ALTAppID, team: ALTTeam, completionHandler: @escaping (Result<ALTProvisioningProfile, Error>) -> Void)
     {
         ALTAppleAPI.shared.fetchProvisioningProfile(for: appID, team: team) { (profile, error) in
-            completionHandler(Result(profile, error))
+            switch Result(profile, error)
+            {
+            case .failure(let error): completionHandler(.failure(error))
+            case .success(let profile):
+                
+                // Delete existing profile
+                ALTAppleAPI.shared.delete(profile, for: team) { (success, error) in
+                    switch Result(success, error)
+                    {
+                    case .failure(let error): completionHandler(.failure(error))
+                    case .success:
+                        
+                        // Fetch new provisiong profile
+                        ALTAppleAPI.shared.fetchProvisioningProfile(for: appID, team: team) { (profile, error) in
+                            completionHandler(Result(profile, error))
+                        }
+                    }
+                }
+            }            
         }
     }
     
diff --git a/Dependencies/AltSign b/Dependencies/AltSign
index ae919bed..17cc07d3 160000
--- a/Dependencies/AltSign
+++ b/Dependencies/AltSign
@@ -1 +1 @@
-Subproject commit ae919bedd259d65584d54fc6861b1cb5261cad8f
+Subproject commit 17cc07d3b324aa1891bb32ebe5ffc836d3094dc5