diff --git a/lake-manifest.json b/lake-manifest.json
index 836242b..6106804 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -15,20 +15,20 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "5a0ec8588855265ade536f35bcdcf0fb24fd6030",
+   "rev": "79402ad9ab4be9a2286701a9880697e2351e4955",
    "name": "aesop",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "v4.14.0",
+   "inputRev": "master",
    "inherited": false,
    "configFile": "lakefile.toml"},
   {"url": "https://github.com/leanprover-community/batteries",
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "8d6c853f11a5172efa0e96b9f2be1a83d861cdd9",
+   "rev": "8ce422eb59adf557fac184f8b1678c75fa03075c",
    "name": "batteries",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "v4.14.0",
+   "inputRev": "v4.16.0-rc1",
    "inherited": true,
    "configFile": "lakefile.toml"}],
  "name": "TensorLib",
diff --git a/lakefile.lean b/lakefile.lean
index babbe24..913da0f 100644
--- a/lakefile.lean
+++ b/lakefile.lean
@@ -11,14 +11,8 @@ lean_lib «TensorLib» where
 lean_exe "tensorlib" where
   root := `Main
 
--- require aesop from git
---   "https://github.com/leanprover-community/aesop" @ "v4.15.0-rc1"
-
--- require Cli from git
---   "https://github.com/seanmcl/lean4-cli.git" @ "v4.15.0-rc1"
-
 require aesop from git
-  "https://github.com/leanprover-community/aesop" @ "v4.14.0"
+  "https://github.com/leanprover-community/aesop" @ "master" -- 'master' rather than a tag is a workaround for segfault bug https://github.com/leanprover/lean4/issues/6518#issuecomment-2574607960
 
 require Cli from git
   "https://github.com/leanprover/lean4-cli.git" @ "v2.2.0-lv4.14.0-rc1"
diff --git a/lean-toolchain b/lean-toolchain
index 1e70935..d0eb99f 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.14.0
+leanprover/lean4:v4.15.0