diff --git a/keyboards/planck/rev6/chconf.h b/keyboards/planck/rev6/chconf.h
index b52ca7d2c8..acb5d0c48e 100644
--- a/keyboards/planck/rev6/chconf.h
+++ b/keyboards/planck/rev6/chconf.h
@@ -58,7 +58,7 @@
  *          The value one is not valid, timeouts are rounded up to
  *          this value.
  */
-#define CH_CFG_ST_TIMEDELTA                 2
+#define CH_CFG_ST_TIMEDELTA                 0
 
 /** @} */
 
diff --git a/keyboards/planck/rev6/mcuconf.h b/keyboards/planck/rev6/mcuconf.h
index 2d27bee4e6..cf141de448 100644
--- a/keyboards/planck/rev6/mcuconf.h
+++ b/keyboards/planck/rev6/mcuconf.h
@@ -225,7 +225,7 @@
  * ST driver system settings.
  */
 #define STM32_ST_IRQ_PRIORITY               8
-#define STM32_ST_USE_TIMER                  4
+#define STM32_ST_USE_TIMER                  3
 
 /*
  * UART driver system settings.