diff --git a/lake-manifest.json b/lake-manifest.json
index b4aed1deb..4e0d2864a 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -5,10 +5,10 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "f29707919d03b8ad12f6f486e2bbf98f908fd331",
+   "rev": "ce52fd18b8ecea2a6268f6973e3ca54f687a01c1",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "nightly-testing-2026-06-30",
+   "inputRev": "nightly-testing-2026-07-03",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover-community/plausible",
@@ -75,7 +75,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "27d322d17a18e76985a24ab17092c3d241711ea3",
+   "rev": "8fb9f43f0c722dffce4a00b38adf12a5043a4936",
    "name": "batteries",
    "manifestFile": "lake-manifest.json",
    "inputRev": "nightly-testing",
diff --git a/lakefile.toml b/lakefile.toml
index e459bdc51..05e5b8e9b 100644
--- a/lakefile.toml
+++ b/lakefile.toml
@@ -18,7 +18,7 @@ weak.linter.unicodeLinter = false
 [[require]]
 name = "mathlib"
 git = "https://github.com/leanprover-community/mathlib4-nightly-testing"
-rev = "nightly-testing-2026-06-30"
+rev = "nightly-testing-2026-07-03"
 
 [[lean_lib]]
 name = "Cslib"
diff --git a/lean-toolchain b/lean-toolchain
index e261b9483..4f88fc749 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2026-06-30
+leanprover/lean4:nightly-2026-07-03