diff --git a/lake-manifest.json b/lake-manifest.json
index 6ae6e6c145..6e1f89e33e 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -4,9 +4,9 @@
  [{"git":
    {"url": "https://github.com/leanprover-community/lean3port.git",
     "subDir?": null,
-    "rev": "9cfd6e6695038c35fc07cfb45f943dd8617cd8ac",
+    "rev": "3b4af37cec43b7c61c70f733a45b12dbd325547c",
     "name": "lean3port",
-    "inputRev?": "9cfd6e6695038c35fc07cfb45f943dd8617cd8ac"}},
+    "inputRev?": "3b4af37cec43b7c61c70f733a45b12dbd325547c"}},
   {"git":
    {"url": "https://github.com/leanprover-community/mathlib4.git",
     "subDir?": null,
diff --git a/lakefile.lean b/lakefile.lean
index bd0339dc24..b1254fc710 100644
--- a/lakefile.lean
+++ b/lakefile.lean
@@ -4,7 +4,7 @@ open Lake DSL System
 -- Usually the `tag` will be of the form `nightly-2021-11-22`.
 -- If you would like to use an artifact from a PR build,
 -- it will be of the form `pr-branchname-sha`.
-def tag : String := "nightly-2023-05-06-04"
+def tag : String := "nightly-2023-05-06-06"
 def releaseRepo : String := "leanprover-community/mathport"
 def oleanTarName : String := "mathlib3-binport.tar.gz"
 
@@ -38,7 +38,7 @@ target fetchOleans (_pkg : Package) : Unit := do
     untarReleaseArtifact releaseRepo tag oleanTarName libDir
   return .nil
 
-require lean3port from git "https://github.com/leanprover-community/lean3port.git"@"9cfd6e6695038c35fc07cfb45f943dd8617cd8ac"
+require lean3port from git "https://github.com/leanprover-community/lean3port.git"@"3b4af37cec43b7c61c70f733a45b12dbd325547c"
 
 @[default_target]
 lean_lib Mathbin where