diff --git a/nesper.nimble b/nesper.nimble
index ce17655..84c8019 100644
--- a/nesper.nimble
+++ b/nesper.nimble
@@ -1,6 +1,6 @@
 # Package
 
-version       = "0.6.1"
+version       = "0.7.0"
 author        = "Jaremy Creechley"
 description   = "Nim wrappers for ESP-IDF (ESP32)"
 license       = "Apache-2.0"
diff --git a/src/nesper/esp-idf-lib/ads111x.nim b/src/nesper/esp_idf_lib/ads111x.nim
similarity index 100%
rename from src/nesper/esp-idf-lib/ads111x.nim
rename to src/nesper/esp_idf_lib/ads111x.nim
diff --git a/src/nesper/esp-idf-lib/ads111x_utils.nim b/src/nesper/esp_idf_lib/ads111x_utils.nim
similarity index 100%
rename from src/nesper/esp-idf-lib/ads111x_utils.nim
rename to src/nesper/esp_idf_lib/ads111x_utils.nim
diff --git a/src/nesper/esp-idf-lib/i2cdev.nim b/src/nesper/esp_idf_lib/i2cdev.nim
similarity index 100%
rename from src/nesper/esp-idf-lib/i2cdev.nim
rename to src/nesper/esp_idf_lib/i2cdev.nim
diff --git a/src/nesper/esp-idf-lib/i2cdev_utils.nim b/src/nesper/esp_idf_lib/i2cdev_utils.nim
similarity index 100%
rename from src/nesper/esp-idf-lib/i2cdev_utils.nim
rename to src/nesper/esp_idf_lib/i2cdev_utils.nim
diff --git a/src/nesper/esp-idf-lib/readme.md b/src/nesper/esp_idf_lib/readme.md
similarity index 100%
rename from src/nesper/esp-idf-lib/readme.md
rename to src/nesper/esp_idf_lib/readme.md
diff --git a/src/nesper/esp-idf-lib/sts21.nim b/src/nesper/esp_idf_lib/sts21.nim
similarity index 100%
rename from src/nesper/esp-idf-lib/sts21.nim
rename to src/nesper/esp_idf_lib/sts21.nim