diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 3d85cfb..df1c629 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -18,20 +18,13 @@ jobs:
           ref: master
           path: CustomLibrary_EthernetLarge # must contain string "Custom"
 
-    - name: Checkout M5Unit-ENV library
-      uses: actions/checkout@v3
-      with:
-          repository: m5stack/M5Unit-ENV
-          ref: master
-          path: CustomLibrary_M5Unit-ENV # must contain string "Custom"
-
     - name: Compile sketch
       uses: ArminJo/arduino-test-compile@v3
       with:
         arduino-board-fqbn: esp32:esp32:m5stack-atoms3:CDCOnBoot=cdc
         arduino-platform: esp32:esp32@2.0.15
         platform-url: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
-        required-libraries: M5AtomS3@1.0.0,M5Unified@0.1.14,M5-Ethernet@4.0.0,M5GFX@0.1.15,SSLClient@1.6.11,UrlEncode@1.0.1
+        required-libraries: M5AtomS3@1.0.0,M5Unified@0.1.14,M5Unit-ENV@1.0.1,M5-Ethernet@4.0.0,M5GFX@0.1.15,SSLClient@1.6.11,UrlEncode@1.0.1
         sketch-names: "*.ino"
         sketch-names-find-start: bbn_*/*
         extra-arduino-cli-args: "--warnings default"