diff --git a/cpp/web_server.cpp b/cpp/web_server.cpp
index c2727e8..26cc730 100644
--- a/cpp/web_server.cpp
+++ b/cpp/web_server.cpp
@@ -199,7 +199,7 @@ bool WebServer::start_server(quint16 port) {
         }
     }
 
-    expire_tokens_thread_ = std::jthread(run_task_every, 60, [this, lubuntuci] {
+    expire_tokens_thread_ = std::jthread(run_task_every, 60, [this, &lubuntuci] mutable {
         QSqlQuery expired_tokens(get_thread_connection());
         QString current_time = QDateTime::currentDateTime().toString(Qt::ISODate);
 
@@ -216,7 +216,7 @@ bool WebServer::start_server(quint16 port) {
         }
     });
 
-    process_sources_thread_ = std::jthread(run_task_every, 10, [this, all_repos, proposed, lubuntuci, job_statuses] {
+    process_sources_thread_ = std::jthread(run_task_every, 10, [this, &all_repos, &proposed, &lubuntuci, &job_statuses] mutable {
         for (auto pkgconf : all_repos) {
             if (!pkgconf->can_check_source_upload()) { continue; }
 
@@ -241,7 +241,7 @@ bool WebServer::start_server(quint16 port) {
         }
     });
 
-    process_binaries_thread_ = std::jthread(run_task_every, 10, [this, all_repos, proposed, lubuntuci, job_statuses] {
+    process_binaries_thread_ = std::jthread(run_task_every, 10, [this, &all_repos, &proposed, &lubuntuci, &job_statuses] mutable {
         for (auto pkgconf : all_repos) {
             if (!pkgconf->can_check_builds()) { continue; }