diff --git a/platformio.ini b/platformio.ini
index 8d9b02978..8d4f3a883 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -113,7 +113,7 @@ lib_deps =
   adafruit/Adafruit Unified Sensor@^1.1.4
   paulstoffregen/OneWire@^2.3.5
   robtillaart/DS18B20@^0.1.11
-  h2zero/NimBLE-Arduino@^1.3.1
+  h2zero/NimBLE-Arduino@1.3.1
 # Hmm - this doesn't work yet
 # board_build.ldscript = linker/esp32.extram.bss.ld
 lib_ignore =