diff --git a/newsfragments/3436.dev.rst b/newsfragments/3436.dev.rst
new file mode 100644
index 000000000..3c83f0653
--- /dev/null
+++ b/newsfragments/3436.dev.rst
@@ -0,0 +1 @@
+Reintroduce ``simple_cache_middleware`` to cache some RPC calls like ``eth_chainId``.