diff --git a/lake-manifest.json b/lake-manifest.json
index cb87e1f..3dcbcd5 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -5,7 +5,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover",
-   "rev": "af5aa64bb914c3c2c781f378088dbd38acf4f804",
+   "rev": "9fb131bb100eb32ccf6836f14e4f8328d13b6792",
    "name": "lean4export",
    "manifestFile": "lake-manifest.json",
    "inputRev": "master",
diff --git a/lean-toolchain b/lean-toolchain
index fd85b26..c084c7f 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.33.0-rc1
+leanprover/lean4:v4.33.0-rc2