diff --git a/changelog/4267.removed.md b/changelog/4267.removed.md
new file mode 100644
index 000000000..bf1e1cb82
--- /dev/null
+++ b/changelog/4267.removed.md
@@ -0,0 +1 @@
+- ⚠️ Removed deprecated `PIPECAT_OBSERVER_FILES` environment variable support. Use `PIPECAT_SETUP_FILES` instead.