diff --git a/lake-manifest.json b/lake-manifest.json
index ff663c6..75c21fb 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -55,10 +55,10 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "9b4088ccf0f44ddd7b1132bb1348aef8cf481e12",
+   "rev": "68b518c9b352fbee16e6d632adcb7a6d0760e2b7",
    "name": "importGraph",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "main",
+   "inputRev": "68b518c9b352fbee16e6d632adcb7a6d0760e2b7",
    "inherited": false,
    "configFile": "lakefile.toml"},
   {"url": "https://github.com/leanprover-community/mathlib4",
@@ -105,7 +105,7 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "5e95f4776be5e048364f325c7e9d619bb56fb005",
+   "rev": "9148a0a7506099963925cf239c491fcda5ed0044",
    "name": "MD4Lean",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
@@ -115,7 +115,7 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "6d2e06515f1ed1f74208d5a1da3a9cc26c60a7a0",
+   "rev": "f93115d0209de6db335725dee900d379f40c0317",
    "name": "UnicodeBasic",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
@@ -125,7 +125,7 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "85e1e7143dd4cfa2b551826c27867bada60858e8",
+   "rev": "bd8747df9ee72fca365efa5bd3bd0d8dcd083b9f",
    "name": "BibtexQuery",
    "manifestFile": "lake-manifest.json",
    "inputRev": "master",
@@ -135,10 +135,10 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "ccb4e97ffb7ad0f9b1852e9669d5e2922f984175",
+   "rev": "b941c425f6f0f1dc45fe13b850ffa7db1bb20d04",
    "name": "«doc-gen4»",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "main",
+   "inputRev": "b941c425f6f0f1dc45fe13b850ffa7db1bb20d04",
    "inherited": false,
    "configFile": "lakefile.lean"}],
  "name": "Summary",
diff --git a/lakefile.lean b/lakefile.lean
index b99f56e..4ca5ab7 100644
--- a/lakefile.lean
+++ b/lakefile.lean
@@ -5,8 +5,8 @@ require foundation from git "https://github.com/FormalizedFormalLogic/Foundation
 require arithmetization from git "https://github.com/FormalizedFormalLogic/Arithmetization" @ "master"
 require incompleteness from git "https://github.com/FormalizedFormalLogic/Incompleteness" @ "master"
 
-require importGraph from git "https://github.com/leanprover-community/import-graph" @ "main"
-require «doc-gen4» from git "https://github.com/leanprover/doc-gen4" @ "main"
+require importGraph from git "https://github.com/leanprover-community/import-graph" @ "68b518c9b352fbee16e6d632adcb7a6d0760e2b7"
+require «doc-gen4» from git "https://github.com/leanprover/doc-gen4" @ "b941c425f6f0f1dc45fe13b850ffa7db1bb20d04"
 
 package "Summary" where