diff --git a/app/src/main/java/at/bitfire/davdroid/HttpClient.kt b/app/src/main/java/at/bitfire/davdroid/HttpClient.kt
index 9e1863bcef679b0ad713fe272334e3359a92a0b0..ad255d1853ba4325bf4b95d793a1ee91fc24d5b0 100644
--- a/app/src/main/java/at/bitfire/davdroid/HttpClient.kt
+++ b/app/src/main/java/at/bitfire/davdroid/HttpClient.kt
@@ -56,7 +56,7 @@ class HttpClient private constructor(
             OkHttpClient.Builder()
                 // Set timeouts. According to [AbstractThreadedSyncAdapter], when there is no network
                 // traffic within a minute, a sync will be cancelled.
-                .connectTimeout(15, TimeUnit.SECONDS)
+                .connectTimeout(60, TimeUnit.SECONDS)
                 .writeTimeout(30, TimeUnit.SECONDS)
                 .readTimeout(120, TimeUnit.SECONDS)
                 .pingInterval(