diff --git a/src/puter-js/src/modules/FileSystem/index.js b/src/puter-js/src/modules/FileSystem/index.js
index 97ed44644..532d5be2b 100644
--- a/src/puter-js/src/modules/FileSystem/index.js
+++ b/src/puter-js/src/modules/FileSystem/index.js
@@ -116,7 +116,7 @@ export class PuterJSFileSystemModule extends AdvancedBase {
         this.socket.on('cache.updated', (msg) => {
             // check original_client_socket_id and if it matches this.socket.id, don't post update
             if (msg.original_client_socket_id !== this.socket.id) {
-                this.postUpdate();
+                this.invalidateCache();
             }
         });
 
@@ -124,7 +124,7 @@ export class PuterJSFileSystemModule extends AdvancedBase {
         this.socket.on('item.renamed', (item) => {
             // check original_client_socket_id and if it matches this.socket.id, don't post update
             if (item.original_client_socket_id !== this.socket.id) {
-                this.postUpdate();
+                this.invalidateCache();
             }
         });
 
@@ -218,10 +218,10 @@ export class PuterJSFileSystemModule extends AdvancedBase {
      * @memberof PuterJSFileSystemModule
      * @returns {void}
      */
-    postUpdate() {
+    invalidateCache() {
         // Action: Flush local cache
         puter._cache.flushall();
-        console.log('postUpdate triggered, cache flushed');
+        console.log('invalidateCache triggered, cache flushed');
 
         // Action: Update last valid time
         //
diff --git a/src/puter-js/src/modules/FileSystem/operations/copy.js b/src/puter-js/src/modules/FileSystem/operations/copy.js
index 59fc1ae4a..0ba06c2fd 100644
--- a/src/puter-js/src/modules/FileSystem/operations/copy.js
+++ b/src/puter-js/src/modules/FileSystem/operations/copy.js
@@ -56,7 +56,7 @@ const copy = function (...args) {
             dedupe_name: (options.dedupe_name || options.dedupeName),
         }));
 
-        this.postUpdate();
+        this.invalidateCache();
     })
 }
 
diff --git a/src/puter-js/src/modules/FileSystem/operations/mkdir.js b/src/puter-js/src/modules/FileSystem/operations/mkdir.js
index 3858a29fe..8e7a411f8 100644
--- a/src/puter-js/src/modules/FileSystem/operations/mkdir.js
+++ b/src/puter-js/src/modules/FileSystem/operations/mkdir.js
@@ -54,7 +54,7 @@ const mkdir = function (...args) {
             create_missing_parents: (options.recursive || options.createMissingParents) ?? false,
         }));
 
-        this.postUpdate();
+        this.invalidateCache();
     })
 }
 
diff --git a/src/puter-js/src/modules/FileSystem/operations/move.js b/src/puter-js/src/modules/FileSystem/operations/move.js
index 8bdadb8ae..a691febf2 100644
--- a/src/puter-js/src/modules/FileSystem/operations/move.js
+++ b/src/puter-js/src/modules/FileSystem/operations/move.js
@@ -66,7 +66,7 @@ const move = function (...args) {
             original_client_socket_id: options.excludeSocketID,
         }));
 
-        this.postUpdate();
+        this.invalidateCache();
     })
 }
 
diff --git a/src/puter-js/src/modules/FileSystem/operations/readdir.js b/src/puter-js/src/modules/FileSystem/operations/readdir.js
index ffabb555e..54b3051e7 100644
--- a/src/puter-js/src/modules/FileSystem/operations/readdir.js
+++ b/src/puter-js/src/modules/FileSystem/operations/readdir.js
@@ -65,17 +65,16 @@ const readdir = async function (...args) {
             
             // Cache the result if it's not bigger than MAX_CACHE_SIZE
             const MAX_CACHE_SIZE = 20 * 1024 * 1024;
-            const EXPIRE_TIME = 60 * 60; // 1 hour
 
             if(resultSize <= MAX_CACHE_SIZE){
                 // UPSERT the cache
-                await puter._cache.set(cacheKey, result, { EX: EXPIRE_TIME });
+                await puter._cache.set(cacheKey, result);
             }
 
             // set each individual item's cache
             for(const item of result){
-                await puter._cache.set('item:' + item.id, item, { EX: EXPIRE_TIME });
-                await puter._cache.set('item:' + item.path, item, { EX: EXPIRE_TIME });
+                await puter._cache.set('item:' + item.id, item);
+                await puter._cache.set('item:' + item.path, item);
             }
             
             resolve(result);
diff --git a/src/puter-js/src/modules/FileSystem/operations/rename.js b/src/puter-js/src/modules/FileSystem/operations/rename.js
index c5156c6c2..ff377ecfc 100644
--- a/src/puter-js/src/modules/FileSystem/operations/rename.js
+++ b/src/puter-js/src/modules/FileSystem/operations/rename.js
@@ -51,7 +51,7 @@ const rename = function (...args) {
         
         xhr.send(JSON.stringify(dataToSend));
 
-        this.postUpdate();
+        this.invalidateCache();
     })
 }
 
diff --git a/src/puter-js/src/modules/FileSystem/operations/stat.js b/src/puter-js/src/modules/FileSystem/operations/stat.js
index 42689d435..0102ec147 100644
--- a/src/puter-js/src/modules/FileSystem/operations/stat.js
+++ b/src/puter-js/src/modules/FileSystem/operations/stat.js
@@ -62,12 +62,11 @@ const stat = async function (...args) {
             
             // Cache the result if it's not bigger than MAX_CACHE_SIZE
             const MAX_CACHE_SIZE = 20 * 1024 * 1024;
-            const EXPIRE_TIME = 60 * 60; // 1 hour
 
             if(resultSize <= MAX_CACHE_SIZE){
                 // UPSERT the cache
-                await puter._cache.set('item:' + result.path, result, { EX: EXPIRE_TIME });
-                await puter._cache.set('item:' + result.uid, result, { EX: EXPIRE_TIME });
+                await puter._cache.set('item:' + result.path, result);
+                await puter._cache.set('item:' + result.uid, result);
             }
             
             resolve(result);
diff --git a/src/puter-js/src/modules/FileSystem/operations/upload.js b/src/puter-js/src/modules/FileSystem/operations/upload.js
index b23a74a96..a8979676e 100644
--- a/src/puter-js/src/modules/FileSystem/operations/upload.js
+++ b/src/puter-js/src/modules/FileSystem/operations/upload.js
@@ -432,7 +432,7 @@ const upload = async function(items, dirPath, options = {}){
         // send request
         xhr.send(fd);
 
-        this.postUpdate();
+        this.invalidateCache();
     })
 }
 
diff --git a/src/puter-js/src/modules/FileSystem/operations/write.js b/src/puter-js/src/modules/FileSystem/operations/write.js
index b882ea571..74f81e2f9 100644
--- a/src/puter-js/src/modules/FileSystem/operations/write.js
+++ b/src/puter-js/src/modules/FileSystem/operations/write.js
@@ -55,7 +55,7 @@ const write = async function (targetPath, data, options = {}) {
         throw new Error({ code: 'field_invalid', message: 'write() data parameter is an invalid type' });
     }
 
-    this.postUpdate();
+    this.invalidateCache();
 
     // perform upload
     return this.upload(data, parent, options);