diff --git a/packages/core/services/FileService/HttpFileService/index.ts b/packages/core/services/FileService/HttpFileService/index.ts
index 2b5f81ad..e20a4bb7 100644
--- a/packages/core/services/FileService/HttpFileService/index.ts
+++ b/packages/core/services/FileService/HttpFileService/index.ts
@@ -20,7 +20,7 @@ interface Config extends ConnectionConfig {
  * Service responsible for fetching file related metadata.
  */
 export default class HttpFileService extends HttpServiceBase implements FileService {
-    private static readonly CACHE_ENDPOINT_VERSION = "3.0";
+    private static readonly CACHE_ENDPOINT_VERSION = "v3.0";
     private static readonly ENDPOINT_VERSION = "3.0";
     public static readonly BASE_FILES_URL = `file-explorer-service/${HttpFileService.ENDPOINT_VERSION}/files`;
     public static readonly BASE_FILE_COUNT_URL = `${HttpFileService.BASE_FILES_URL}/count`;
@@ -138,13 +138,16 @@ export default class HttpFileService extends HttpServiceBase implements FileServ
     ): Promise<{ cacheFileStatuses: { [fileId: string]: string } }> {
         const requestUrl = `${this.aicsLoadBalancerBaseUrl}/${HttpFileService.BASE_FILE_CACHE_URL}${this.pathSuffix}`;
         const requestBody = JSON.stringify({ fileIds });
+        const headers = {
+            "Content-Type": "application/json",
+            "X-User-Id": "brian.whitney", // TODO: Make this not my user
+        };
 
         try {
-            const cacheStatuses = await this.rawPost<{
+            const cacheStatuses = await this.rawPut<{
                 cacheFileStatuses: { [fileId: string]: string };
-            }>(requestUrl, requestBody);
-
-            return cacheStatuses; // Return the entire response object
+            }>(requestUrl, requestBody, headers);
+            return cacheStatuses;
         } catch (error) {
             console.error("Failed to cache files:", error);
             throw new Error("Unable to complete the caching request.");
diff --git a/packages/core/services/HttpServiceBase/index.ts b/packages/core/services/HttpServiceBase/index.ts
index 4d10b3c6..3516272f 100644
--- a/packages/core/services/HttpServiceBase/index.ts
+++ b/packages/core/services/HttpServiceBase/index.ts
@@ -195,6 +195,32 @@ export default class HttpServiceBase {
         return response.data;
     }
 
+    public async rawPut<T>(
+        url: string,
+        body: string,
+        headers: { [key: string]: string } = {}
+    ): Promise<T> {
+        const encodedUrl = HttpServiceBase.encodeURI(url);
+        const config = { headers: { ...headers } };
+
+        let response;
+        try {
+            // Retry policy wrapped around axios PUT
+            response = await retry.execute(() => this.httpClient.put(encodedUrl, body, config));
+        } catch (err) {
+            if (axios.isAxiosError(err) && err?.response?.data?.message) {
+                throw new Error(JSON.stringify(err.response.data.message));
+            }
+            throw err;
+        }
+
+        if (response.status >= 400 || response.data === undefined) {
+            throw new Error(`Request for ${encodedUrl} failed`);
+        }
+
+        return response.data;
+    }
+
     public async post<T>(url: string, body: string): Promise<RestServiceResponse<T>> {
         const encodedUrl = HttpServiceBase.encodeURI(url);
         const config = { headers: { "Content-Type": "application/json" } };