diff --git a/requirements.txt b/requirements.txt
index ffcc411..434ad06 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,14 @@
-# Dependencies
+# Runtime dependencies (Python)
+# None!
+
+# Build dependencies
+Transcrypt==3.7.16
+
+# Test dependencies
 coverage==5.3.1
 py-mini-racer==0.4.0
 pytest==6.2.1
 pytest-steps==1.7.3
-Transcrypt==3.7.16
 
 # Dependency tree
 attrs==20.3.0