diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 452b5ac..8887fa7 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -12,6 +12,11 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
+    - name: Set up Python 3.9
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.9
+
     - name: clean venv
       run: make clean venv
 
diff --git a/src/components/file_browser.py b/src/components/file_browser.py
index 6013b7e..6e78abf 100644
--- a/src/components/file_browser.py
+++ b/src/components/file_browser.py
@@ -13,7 +13,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/components/main_win.py b/src/components/main_win.py
index 124cc75..2a553fe 100644
--- a/src/components/main_win.py
+++ b/src/components/main_win.py
@@ -26,7 +26,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/lib/android_permissions.py b/src/lib/android_permissions.py
index 6dcfdaf..3924294 100644
--- a/src/lib/android_permissions.py
+++ b/src/lib/android_permissions.py
@@ -6,7 +6,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/lib/filechooser_android.py b/src/lib/filechooser_android.py
index 5816814..991c131 100644
--- a/src/lib/filechooser_android.py
+++ b/src/lib/filechooser_android.py
@@ -2,7 +2,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/lib/permissions.py b/src/lib/permissions.py
index 69990d1..45420b5 100644
--- a/src/lib/permissions.py
+++ b/src/lib/permissions.py
@@ -6,7 +6,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/lib/system.py b/src/lib/system.py
index d87c990..dd0166d 100644
--- a/src/lib/system.py
+++ b/src/lib/system.py
@@ -10,7 +10,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/main.py b/src/main.py
index ca911f6..e35d46b 100644
--- a/src/main.py
+++ b/src/main.py
@@ -12,7 +12,7 @@
 
 #------------------------------------------------------------------------------ 
 
-_Debug = True
+_Debug = False
 _DebugProfilingEnabled = False
 _DebugKivyOutputEnabled = True
 
diff --git a/src/screens/screen_conversations.py b/src/screens/screen_conversations.py
index f1c2fb7..6e04fb2 100644
--- a/src/screens/screen_conversations.py
+++ b/src/screens/screen_conversations.py
@@ -10,7 +10,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/screens/screen_friends.py b/src/screens/screen_friends.py
index 35e7e80..8117baf 100644
--- a/src/screens/screen_friends.py
+++ b/src/screens/screen_friends.py
@@ -10,7 +10,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/screens/screen_search_people.py b/src/screens/screen_search_people.py
index 23d28b2..3e3ba0d 100644
--- a/src/screens/screen_search_people.py
+++ b/src/screens/screen_search_people.py
@@ -7,7 +7,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/screens/screen_select_friend.py b/src/screens/screen_select_friend.py
index 8e28e96..b6641b7 100644
--- a/src/screens/screen_select_friend.py
+++ b/src/screens/screen_select_friend.py
@@ -9,7 +9,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/screens/screen_shared_location.py b/src/screens/screen_shared_location.py
index 1d12f2c..04a832d 100644
--- a/src/screens/screen_shared_location.py
+++ b/src/screens/screen_shared_location.py
@@ -14,7 +14,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------
 
diff --git a/src/screens/screen_shares.py b/src/screens/screen_shares.py
index 57e46d2..5afedce 100644
--- a/src/screens/screen_shares.py
+++ b/src/screens/screen_shares.py
@@ -10,7 +10,7 @@
 
 #------------------------------------------------------------------------------
 
-_Debug = True
+_Debug = False
 
 #------------------------------------------------------------------------------