diff --git a/NucleicRemote/NucleicRemote/Models/SessionCache.swift b/NucleicRemote/NucleicRemote/Models/SessionCache.swift
index 2b7b566..118d543 100644
--- a/NucleicRemote/NucleicRemote/Models/SessionCache.swift
+++ b/NucleicRemote/NucleicRemote/Models/SessionCache.swift
@@ -97,12 +97,12 @@ enum SessionCache {
         try? FileManager.default.createDirectory(at: dir, withIntermediateDirectories: true)
         let sorted = events.sorted { $0.seq < $1.seq }
         let tail = sorted.count > eventLimit ? Array(sorted.suffix(eventLimit)) : sorted
-        if let data = try? encoder.encode(tail) { try? data.write(to: url, options: .atomic) }
+        if let data = try? JSONEncoder().encode(tail) { try? data.write(to: url, options: .atomic) }
     }
 
     private static func readEvents(_ id: SessionID) -> [AgentEvent] {
         guard let url = transcriptURL(id), let data = try? Data(contentsOf: url),
-              let events = try? decoder.decode([AgentEvent].self, from: data)
+              let events = try? JSONDecoder().decode([AgentEvent].self, from: data)
         else { return [] }
         return events
     }