diff --git a/client/scss/components/_header.scss b/client/scss/components/_header.scss
index c7cafce..b32009f 100644
--- a/client/scss/components/_header.scss
+++ b/client/scss/components/_header.scss
@@ -39,7 +39,7 @@ header {
 
   .btn {
     width: 2 * $columnWidth;
-    margin-left: $columnGap / 2;
+    margin-left: math.div($columnGap, 2);
   }
 
   h1 {
diff --git a/setup.cfg b/setup.cfg
index 8c7ee7c..8059977 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -28,7 +28,7 @@ zip_safe = False
 python_requires = >=3.6
 install_requires =
     # Essential packages
-    django>=4.0
+    django>=3.2
     pygments>=2.11
     django-staticinline>=1.0
     django-csp>=3.6