diff --git a/ChangeLog.md b/ChangeLog.md
index 9f2e91a7d..8034b88ef 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -2,6 +2,10 @@
 
 This project's release branch is `master`. This log is written from the perspective of the release branch: when changes hit `master`, they are considered released.
 
+## Unreleased (ready to be v0.9.2.1)
+
+* Update reflex-platform to v0.7.2.0
+
 ## v0.9.2.0 - 2021-12-28
 
 * Update reflex-platform to v0.7.1.0
diff --git a/dep/reflex-platform/github.json b/dep/reflex-platform/github.json
index e0769f2a5..dd1d259a3 100644
--- a/dep/reflex-platform/github.json
+++ b/dep/reflex-platform/github.json
@@ -1,8 +1,8 @@
 {
   "owner": "reflex-frp",
   "repo": "reflex-platform",
-  "branch": "develop",
+  "branch": "nixpkgs-19.09",
   "private": false,
-  "rev": "6c2636422a6c721e26481ac5901fb0d359922a90",
-  "sha256": "1axnpqfwzprszfzlab3gk9x3pmd2fhdnjwf4xw9v5k8j9p2j7lv0"
+  "rev": "819e116e09a85fafb7364ba6819ffaa5a76072a0",
+  "sha256": "1j4j6irn2qaajikvm0xfxxfl4l3k94bb03blvpmwyyrv9597vfkp"
 }