diff --git a/lake-manifest.json b/lake-manifest.json
index bc81466..8b6f687 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -5,7 +5,7 @@
    "type": "git",
    "subDir": null,
    "scope": "FormalizedFormalLogic",
-   "rev": "7546c6fee2be1e5d6a872cf9cf43c9b08cdea405",
+   "rev": "d5a5b566c4bbc8d91a509979ae5091e750e67059",
    "name": "foundation",
    "manifestFile": "lake-manifest.json",
    "inputRev": "master",
@@ -15,7 +15,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "dde4f2ecaec222a1c7db638d7536f0b195d8e953",
+   "rev": "b18b0c87025ebd469227afa91b78f861cac466b8",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
    "inputRev": "master",
@@ -25,10 +25,10 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "42dc02bdbc5d0c2f395718462a76c3d87318f7fa",
+   "rev": "8e5cb8d424df462f84997dd68af6f40e347c3e35",
    "name": "plausible",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "main",
+   "inputRev": "v4.15.0-rc1",
    "inherited": true,
    "configFile": "lakefile.toml"},
   {"url": "https://github.com/leanprover-community/LeanSearchClient",
@@ -45,57 +45,57 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "519e509a28864af5bed98033dd33b95cf08e9aa7",
+   "rev": "ed3b856bd8893ade75cafe13e8544d4c2660f377",
    "name": "importGraph",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "v4.14.0",
+   "inputRev": "v4.15.0-rc1",
    "inherited": true,
    "configFile": "lakefile.toml"},
   {"url": "https://github.com/leanprover-community/ProofWidgets4",
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "68280daef58803f68368eb2e53046dabcd270c9d",
+   "rev": "2b000e02d50394af68cfb4770a291113d94801b5",
    "name": "proofwidgets",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "v0.0.47",
+   "inputRev": "v0.0.48",
    "inherited": true,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover-community/aesop",
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "5a0ec8588855265ade536f35bcdcf0fb24fd6030",
+   "rev": "43bcb1964528411e47bfa4edd0c87d1face1fce4",
    "name": "aesop",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "v4.14.0",
+   "inputRev": "master",
    "inherited": true,
    "configFile": "lakefile.toml"},
   {"url": "https://github.com/leanprover-community/quote4",
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "303b23fbcea94ac4f96e590c1cad6618fd4f5f41",
+   "rev": "ad942fdf0b15c38bface6acbb01d63855a2519ac",
    "name": "Qq",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "master",
+   "inputRev": "v4.14.0",
    "inherited": true,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover-community/batteries",
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "8d6c853f11a5172efa0e96b9f2be1a83d861cdd9",
+   "rev": "74dffd1a83cdd2969a31c9892b0517e7c6f50668",
    "name": "batteries",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "v4.14.0",
+   "inputRev": "main",
    "inherited": true,
    "configFile": "lakefile.toml"},
   {"url": "https://github.com/leanprover/lean4-cli",
    "type": "git",
    "subDir": null,
    "scope": "leanprover",
-   "rev": "726b3c9ad13acca724d4651f14afc4804a7b0e4d",
+   "rev": "0c8ea32a15a4f74143e4e1e107ba2c412adb90fd",
    "name": "Cli",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
diff --git a/lean-toolchain b/lean-toolchain
index 401bc14..cf25a98 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.14.0
\ No newline at end of file
+leanprover/lean4:v4.15.0-rc1