diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index f6151ad26..e90782d66 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: [ubuntu-latest]
 
     env:
-        DEEPSOURCE_DSN: ${{ secrets.DEEPSOURCE_DSN }}
+        DEEPSOURCE_DSN: ${{ secrets.DEEPSOURCE_DSN_DEV }}
 
     steps:
     - name: Checkout code
diff --git a/demo_code.py b/demo_code.py
index 1e336515f..f431fe7e9 100644
--- a/demo_code.py
+++ b/demo_code.py
@@ -4,12 +4,12 @@
 import os
 import subprocess
 import ssl
-import nothing
 
 # from django.db.models.expressions import RawSQL
 
 AWS_SECRET_KEY = "d6s$f9g!j8mg7hw?n&2"
 
+
 class BaseNumberGenerator:
     """Declare a method -- `get_number`."""
 
@@ -35,7 +35,7 @@ class RandomNumberGenerator:
 
     def limits(self):
         return self.limits
-    
+
     def _test(self):
         return self.limits
 
@@ -47,6 +47,7 @@ def get_number(self, min_max=[1, 10]):
 
 class ImaginaryNumber:
     """Class to represent an imaginary number."""
+
     def __init__(self):
         self.real = 0
         self.imaginary = 1
@@ -131,11 +132,13 @@ def chained_comparison():
     c = 3
     return a < b and b < c
 
+
 def wrong_callable():
     number = ImaginaryNumber()
-    if hasattr(number, '__call__'):
+    if hasattr(number, "__call__"):
         return number()
 
+
 if __name__ == "__main__":
     args = ["--disable", "all"]
     for i in range(len(args)):