diff --git a/lake-manifest.json b/lake-manifest.json
index 1d7178f0f9..159aa565f1 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -4,7 +4,7 @@
  [{"url": "https://github.com/leanprover/std4",
    "type": "git",
    "subDir": null,
-   "rev": "5bf9172331fb4de21647a919c64d3569839b63c6",
+   "rev": "ee49cf8fada1bf5a15592c399a925c401848227f",
    "name": "std",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
@@ -22,7 +22,7 @@
   {"url": "https://github.com/leanprover-community/aesop",
    "type": "git",
    "subDir": null,
-   "rev": "3141402ba5a5f0372d2378fd75a481bc79a74ecf",
+   "rev": "69404390bdc1de946bf0a2e51b1a69f308e56d7a",
    "name": "aesop",
    "manifestFile": "lake-manifest.json",
    "inputRev": "master",
@@ -31,10 +31,10 @@
   {"url": "https://github.com/leanprover-community/ProofWidgets4",
    "type": "git",
    "subDir": null,
-   "rev": "909febc72b4f64628f8d35cd0554f8a90b6e0749",
+   "rev": "31d41415d5782a196999d4fd8eeaef3cae386a5f",
    "name": "proofwidgets",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "v0.0.23",
+   "inputRev": "v0.0.24",
    "inherited": true,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover/lean4-cli",
@@ -49,12 +49,39 @@
   {"url": "https://github.com/leanprover-community/mathlib4.git",
    "type": "git",
    "subDir": null,
-   "rev": "da34c254e89b2cde09d066068c17cf30ebe603f8",
+   "rev": "98067b25fcb5c00c13b4ac74ab781e2ef6689812",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
    "inputRev": null,
    "inherited": false,
    "configFile": "lakefile.lean"},
+  {"url": "https://github.com/xubaiw/CMark.lean",
+   "type": "git",
+   "subDir": null,
+   "rev": "0077cbbaa92abf855fc1c0413e158ffd8195ec77",
+   "name": "CMark",
+   "manifestFile": "lake-manifest.json",
+   "inputRev": "main",
+   "inherited": true,
+   "configFile": "lakefile.lean"},
+  {"url": "https://github.com/fgdorais/lean4-unicode-basic",
+   "type": "git",
+   "subDir": null,
+   "rev": "280d75fdfe7be8eb337be7f1bf8479b4aac09f71",
+   "name": "UnicodeBasic",
+   "manifestFile": "lake-manifest.json",
+   "inputRev": "main",
+   "inherited": true,
+   "configFile": "lakefile.lean"},
+  {"url": "https://github.com/hargonix/LeanInk",
+   "type": "git",
+   "subDir": null,
+   "rev": "2447df5cc6e48eb965c3c3fba87e46d353b5e9f1",
+   "name": "leanInk",
+   "manifestFile": "lake-manifest.json",
+   "inputRev": "doc-gen",
+   "inherited": true,
+   "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover/doc-gen4",
    "type": "git",
    "subDir": null,
diff --git a/lean-toolchain b/lean-toolchain
index 91ccf6ac09..3f21e50bd4 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.4.0-rc1
+leanprover/lean4:v4.5.0-rc1