diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cb07a89..4a9f5ae 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -85,7 +85,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install pyinstaller
+        pip install "pyinstaller~=4.6" 
         pip install -r requirements.txt
     - name: Build with pyinstaller for ${{matrix.TARGET}}
       run: ${{matrix.CMD_BUILD}}
diff --git a/.gitignore b/.gitignore
index 5e52e12..75d2ff7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,5 +9,4 @@ build
 dist
 setup.py
 .eggs
-Thumbs.db
-cc2538_bsl.py
\ No newline at end of file
+Thumbs.db
\ No newline at end of file