diff --git a/src/jinja2/compiler.py b/src/jinja2/compiler.py
index 91720c5f9..df676dedc 100644
--- a/src/jinja2/compiler.py
+++ b/src/jinja2/compiler.py
@@ -811,7 +811,7 @@ def pop_assign_tracking(self, frame: Frame) -> None:
                 self.writeline("_block_vars.update({")
             else:
                 self.writeline("context.vars.update({")
-            for idx, name in enumerate(vars):
+            for idx, name in enumerate(sorted(vars)):
                 if idx:
                     self.write(", ")
                 ref = frame.symbols.ref(name)