diff --git a/platformio.ini b/platformio.ini
index c81ce535f..6f3f2d6fe 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -21,6 +21,8 @@ build_flags =
   -DWM_MDNS
 
 lib_deps =
-  lovyan03/LovyanGFX@^1.2.7
+  ; pinned: 1.2.24+ declares its own `fonts` alias that collides with the
+  ; one used here, and 1.2.7 predates the two-arg loadFont() this code uses
+  lovyan03/LovyanGFX@1.2.21
   tzapu/WiFiManager@^2.0.17
   bblanchon/ArduinoJson@^7.4.2