diff --git a/lib/gs-fedora-third-party.c b/lib/gs-fedora-third-party.c
index e79bba8..9e7115a 100644
--- a/lib/gs-fedora-third-party.c
+++ b/lib/gs-fedora-third-party.c
@@ -11,6 +11,10 @@
 
 #include "gs-fedora-third-party.h"
 
+#if !GLIB_CHECK_VERSION(2, 70, 0)
+#define g_spawn_check_wait_status g_spawn_check_exit_status
+#endif
+
 struct _GsFedoraThirdParty
 {
 	GObject		 parent_instance;
diff --git a/lib/gs-icon-downloader.c b/lib/gs-icon-downloader.c
index a1a669c..577fda2 100644
--- a/lib/gs-icon-downloader.c
+++ b/lib/gs-icon-downloader.c
@@ -41,7 +41,7 @@ struct _GsIconDownloader
 	GCancellable	*cancellable; /* (owned) */
 };
 
-G_DEFINE_FINAL_TYPE (GsIconDownloader, gs_icon_downloader, G_TYPE_OBJECT)
+G_DEFINE_TYPE (GsIconDownloader, gs_icon_downloader, G_TYPE_OBJECT)
 
 typedef enum {
 	PROP_MAXIMUM_SIZE = 1,
diff --git a/lib/gs-job-manager.c b/lib/gs-job-manager.c
index 98d79a7..694a157 100644
--- a/lib/gs-job-manager.c
+++ b/lib/gs-job-manager.c
@@ -100,7 +100,9 @@ watch_data_unref (WatchData *data)
 					       watch_free_data_cb,
 					       g_steal_pointer (&data),
 					       (GDestroyNotify) watch_data_unref);
+			#if GLIB_CHECK_VERSION(2, 70, 0)
 			g_source_set_static_name (idle_source, G_STRFUNC);
+			#endif
 			g_source_attach (idle_source, callback_context);
 
 			/* Freeing will eventually happen in watch_free_data_cb(). */
@@ -359,7 +361,9 @@ gs_job_manager_add_job (GsJobManager *self,
 					       watch_call_handler_cb,
 					       g_steal_pointer (&idle_data),
 					       (GDestroyNotify) watch_call_handler_data_free);
+			#if GLIB_CHECK_VERSION(2, 70, 0)
 			g_source_set_static_name (idle_source, G_STRFUNC);
+			#endif
 			g_source_attach (idle_source, data->callback_context);
 		}
 	}
@@ -420,7 +424,9 @@ gs_job_manager_remove_job (GsJobManager *self,
 					       watch_call_handler_cb,
 					       g_steal_pointer (&idle_data),
 					       (GDestroyNotify) watch_call_handler_data_free);
+			#if GLIB_CHECK_VERSION(2, 70, 0)
 			g_source_set_static_name (idle_source, G_STRFUNC);
+			#endif
 			g_source_attach (idle_source, data->callback_context);
 		}
 	}
diff --git a/lib/gs-plugin-loader.c b/lib/gs-plugin-loader.c
index 93b33f3..204d55f 100644
--- a/lib/gs-plugin-loader.c
+++ b/lib/gs-plugin-loader.c
@@ -1965,7 +1965,7 @@ get_session_bus_cb (GObject      *object,
 	plugin_loader->session_bus_connection = g_bus_get_finish (result, &local_error);
 	if (plugin_loader->session_bus_connection == NULL) {
 		notify_setup_complete (plugin_loader);
-		g_prefix_error_literal (&local_error, "Error getting session bus: ");
+		g_prefix_error (&local_error, "%s", "Error getting session bus: ");
 		g_task_return_error (task, g_steal_pointer (&local_error));
 		return;
 	}
@@ -1987,7 +1987,7 @@ get_system_bus_cb (GObject      *object,
 	plugin_loader->system_bus_connection = g_bus_get_finish (result, &local_error);
 	if (plugin_loader->system_bus_connection == NULL) {
 		notify_setup_complete (plugin_loader);
-		g_prefix_error_literal (&local_error, "Error getting system bus: ");
+		g_prefix_error (&local_error, "%s", "Error getting system bus: ");
 		g_task_return_error (task, g_steal_pointer (&local_error));
 		return;
 	}
@@ -2753,12 +2753,21 @@ gs_plugin_loader_init (GsPluginLoader *plugin_loader)
 	/* Set up a thread pool for running old-style jobs
 	 * FIXME: This will eventually disappear when all jobs are ported to
 	 * be subclasses of #GsPluginJob. */
+	#if GLIB_CHECK_VERSION(2, 70, 0)
 	plugin_loader->old_api_thread_pool = g_thread_pool_new_full (gs_plugin_loader_process_old_api_job_cb,
 								     plugin_loader,
 								     (GDestroyNotify) g_object_unref,
 								     20,
 								     FALSE,
 								     NULL);
+	#else
+	/* pre-glib 2.70.0 - The items will leak when the thread pool is freed before all jobs are finished */
+	plugin_loader->old_api_thread_pool = g_thread_pool_new (gs_plugin_loader_process_old_api_job_cb,
+								plugin_loader,
+								20,
+								FALSE,
+								NULL);
+	#endif
 
 	/* get the job manager */
 	plugin_loader->job_manager = gs_job_manager_new ();
diff --git a/meson.build b/meson.build
index da9e7ac..4c847c9 100644
--- a/meson.build
+++ b/meson.build
@@ -156,7 +156,7 @@ gtk = dependency('gtk4',
       'demos=false',
     ]
   )
-glib = dependency('glib-2.0', version : '>= 2.70.0')
+glib = dependency('glib-2.0', version : '>= 2.68.0')
 json_glib = dependency('json-glib-1.0', version : '>= 1.6.0')
 libm = cc.find_library('m', required: false)
 if get_option('soup2')
diff --git a/plugins/flatpak/gs-flatpak.c b/plugins/flatpak/gs-flatpak.c
index c84db84..009a425 100644
--- a/plugins/flatpak/gs-flatpak.c
+++ b/plugins/flatpak/gs-flatpak.c
@@ -4738,7 +4738,7 @@ gs_flatpak_purge_sync (GsFlatpak    *self,
 		g_autoptr(FlatpakTransaction) transaction = NULL;
 		transaction = gs_flatpak_transaction_new (installation, GS_FLATPAK_ERROR_MODE_STOP_ON_FIRST_ERROR, cancellable, error);
 		if (transaction == NULL) {
-			g_prefix_error_literal (error, "failed to build transaction: ");
+			g_prefix_error (error, "%s", "failed to build transaction: ");
 			return FALSE;
 		}
 		flatpak_transaction_set_no_interaction (transaction, TRUE);
diff --git a/plugins/fwupd/gs-plugin-fwupd.c b/plugins/fwupd/gs-plugin-fwupd.c
index e931b2b..43c4e9f 100644
--- a/plugins/fwupd/gs-plugin-fwupd.c
+++ b/plugins/fwupd/gs-plugin-fwupd.c
@@ -1653,7 +1653,7 @@ finish_update_apps_op (GTask  *task,
 		g_autoptr(GsPluginEvent) event = NULL;
 
 		event_error = g_error_copy (error_owned);
-		g_prefix_error_literal (&event_error, _("Firmware update could not be applied: "));
+		g_prefix_error (&event_error, "%s", _("Firmware update could not be applied: "));
 		gs_plugin_fwupd_error_convert (&event_error);
 
 		event = gs_plugin_event_new ("app", self->app_current,
diff --git a/plugins/packagekit/gs-plugin-packagekit.c b/plugins/packagekit/gs-plugin-packagekit.c
index 3c5f926..409e831 100644
--- a/plugins/packagekit/gs-plugin-packagekit.c
+++ b/plugins/packagekit/gs-plugin-packagekit.c
@@ -2040,7 +2040,7 @@ search_files_cb (GObject      *source_object,
 	results = pk_client_generic_finish (client, result, &local_error);
 
 	if (!gs_plugin_packagekit_results_valid (results, g_task_get_cancellable (refine_task), &local_error)) {
-		g_prefix_error_literal (&local_error, "failed to search files: ");
+		g_prefix_error (&local_error, "%s", "failed to search files: ");
 		refine_task_complete_operation_with_error (refine_task, g_steal_pointer (&local_error));
 		return;
 	}
@@ -3071,7 +3071,7 @@ gs_plugin_packagekit_convert_error (GError **error,
 		break;
 	}
 	if (prefix != NULL)
-		g_prefix_error_literal (error, prefix);
+		g_prefix_error (error, "%s", prefix);
 	return FALSE;
 }
 
diff --git a/src/gs-common.c b/src/gs-common.c
index 997025a..d665c98 100644
--- a/src/gs-common.c
+++ b/src/gs-common.c
@@ -1027,7 +1027,7 @@ gs_utils_invoke_reboot_ready2_got_session_bus_cb (GObject *source_object,
 	bus = g_bus_get_finish (result, &local_error);
 	if (bus == NULL) {
 		g_dbus_error_strip_remote_error (local_error);
-		g_prefix_error_literal (&local_error, "Failed to get D-Bus session bus: ");
+		g_prefix_error (&local_error, "%s", "Failed to get D-Bus session bus: ");
 		g_task_return_error (task, g_steal_pointer (&local_error));
 		return;
 	}
@@ -1098,7 +1098,7 @@ gs_utils_invoke_reboot_ready1_got_system_bus_cb (GObject *source_object,
 	bus = g_bus_get_finish (result, &local_error);
 	if (bus == NULL) {
 		g_dbus_error_strip_remote_error (local_error);
-		g_prefix_error_literal (&local_error, "Failed to get D-Bus system bus: ");
+		g_prefix_error (&local_error, "%s", "Failed to get D-Bus system bus: ");
 		g_task_return_error (task, g_steal_pointer (&local_error));
 		return;
 	}
@@ -1171,7 +1171,7 @@ gs_utils_invoke_reboot_got_session_bus_cb (GObject *source_object,
 	bus = g_bus_get_finish (result, &local_error);
 	if (bus == NULL) {
 		g_dbus_error_strip_remote_error (local_error);
-		g_prefix_error_literal (&local_error, "Failed to get D-Bus session bus: ");
+		g_prefix_error (&local_error, "%s", "Failed to get D-Bus session bus: ");
 		g_task_return_error (task, g_steal_pointer (&local_error));
 		return;
 	}