diff --git a/src/runtime/composables/authjs/useAuth.ts b/src/runtime/composables/authjs/useAuth.ts
index 2db4ef6e..97d4a98d 100644
--- a/src/runtime/composables/authjs/useAuth.ts
+++ b/src/runtime/composables/authjs/useAuth.ts
@@ -162,12 +162,19 @@ export function useAuth(): UseAuthReturn {
       json: true
     })
 
-    const fetchSignIn = () => _fetch<{ url: string }>(nuxt, `/${action}/${provider}`, {
-      method: 'post',
-      params: authorizationParams,
-      headers,
-      body
-    }).catch<Record<string, any>>((error: { data: any }) => error.data)
+    const fetchSignIn = () => _fetch<{ url: string }>(
+      nuxt,
+      `/${action}/${provider}`,
+      {
+        method: 'post',
+        params: authorizationParams,
+        headers,
+        body
+      },
+      /* proxyCookies = */ true
+    )
+      .catch<Record<string, any>>((error: { data: any }) => error.data)
+
     const data = await callWithNuxt(nuxt, fetchSignIn)
 
     if (redirect || !isSupportingReturn) {
@@ -272,7 +279,7 @@ export function useAuth(): UseAuthReturn {
       onRequestError: onError,
       onResponseError: onError,
       headers
-    })
+    }, /* proxyCookies = */ true)
   }
   function getSessionWithNuxt(nuxt: NuxtApp) {
     return callWithNuxt(nuxt, getSession)
diff --git a/src/runtime/composables/local/useAuth.ts b/src/runtime/composables/local/useAuth.ts
index cf29bc1b..be2696c8 100644
--- a/src/runtime/composables/local/useAuth.ts
+++ b/src/runtime/composables/local/useAuth.ts
@@ -76,7 +76,7 @@ export function useAuth(): UseAuthReturn {
       body: credentials,
       params: signInParams ?? {},
       headers: signInHeaders ?? {}
-    })
+    }, /* proxyCookies = */ true)
 
     if (typeof response !== 'object' || response === null) {
       console.error(`${ERROR_PREFIX} signIn returned non-object value`)
@@ -187,7 +187,7 @@ export function useAuth(): UseAuthReturn {
 
     loading.value = true
     try {
-      const result = await _fetch<any>(nuxt, path, { method, headers }, true)
+      const result = await _fetch<any>(nuxt, path, { method, headers }, /* proxyCookies = */ true)
       const { dataResponsePointer: sessionDataResponsePointer } = config.session
       data.value = jsonPointerGet<SessionData>(result, sessionDataResponsePointer)
     }