diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d6b677e..0126fca 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -23,9 +23,6 @@ jobs:
           - master
         host:
           - ubuntu-22.04
-        include:
-          - linux: v5.10
-            host: ubuntu-20.04
     steps:
       - uses: actions/checkout@v4
         with:
diff --git a/hdaps.c b/hdaps.c
index 76930a3..eb2baf8 100644
--- a/hdaps.c
+++ b/hdaps.c
@@ -427,7 +427,11 @@ static int hdaps_probe(struct platform_device *dev)
 static int hdaps_suspend(struct platform_device *dev, pm_message_t state)
 {
 	/* Don't do hdaps polls until resume re-initializes the sensor. */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6,15,0)
 	del_timer_sync(&hdaps_timer);
+#else
+	timer_delete_sync(&hdaps_timer);
+#endif
 	hdaps_device_shutdown(); /* ignore errors, effect is negligible */
 	return 0;
 }
@@ -671,7 +675,11 @@ static void hdaps_mousedev_close(struct input_dev *dev)
 {
 	mutex_lock(&hdaps_users_mtx);
 	if (--hdaps_users == 0) /* no input users left */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6,15,0)
 		del_timer_sync(&hdaps_timer);
+#else
+		timer_delete_sync(&hdaps_timer);
+#endif
 	mutex_unlock(&hdaps_users_mtx);
 
 	module_put(THIS_MODULE);