diff --git a/Lake/Build/Module.lean b/Lake/Build/Module.lean
index 528a86db47..f9f1012e5e 100644
--- a/Lake/Build/Module.lean
+++ b/Lake/Build/Module.lean
@@ -16,7 +16,7 @@ def Module.buildUnlessUpToDate (mod : Module)
 (depTrace : BuildTrace) : BuildM PUnit := do
   let isOldMode ← getIsOldMode
   let argTrace : BuildTrace := pureHash mod.leanArgs
-  let srcTrace : BuildTrace ← computeTrace mod.leanFile
+  let srcTrace : BuildTrace ← computeTrace { path := mod.leanFile : TextFilePath }
   let modTrace := (← getLeanTrace).mix <| argTrace.mix <| srcTrace.mix depTrace
   let modUpToDate ← do
     if isOldMode then
diff --git a/Lake/Build/Trace.lean b/Lake/Build/Trace.lean
index 41d89c86b5..0c63b1345d 100644
--- a/Lake/Build/Trace.lean
+++ b/Lake/Build/Trace.lean
@@ -131,6 +131,18 @@ def computeFileHash (file : FilePath) : IO Hash :=
 
 instance : ComputeHash FilePath IO := ⟨computeFileHash⟩
 
+/--
+  A wrapper around `FilePath` that adjusts its `ComputeHash` implementation
+  to normalize `\r\n` sequences to `\n` for cross-platform compatibility. -/
+structure TextFilePath where
+  path : FilePath
+
+instance : ComputeHash TextFilePath IO where
+  computeHash file := do
+    let text ← IO.FS.readFile file.path
+    let text := text.replace "\r\n" "\n"
+    return Hash.ofString text
+
 instance [ComputeHash α m] [Monad m] : ComputeHash (Array α) m where
   computeHash ar := ar.foldlM (fun b a => Hash.mix b <$> computeHash a) Hash.nil
 
@@ -171,6 +183,7 @@ def getFileMTime (file : FilePath) : IO MTime :=
   return (← file.metadata).modified
 
 instance : GetMTime FilePath := ⟨getFileMTime⟩
+instance : GetMTime TextFilePath := ⟨(getFileMTime ·.path)⟩
 
 /-- Check if the info's `MTIme` is at least `depMTime`. -/
 def checkIfNewer [GetMTime i] (info : i) (depMTime : MTime) : BaseIO Bool :=
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000000..c7847cf374
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,198 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "locked": {
+        "lastModified": 1656928814,
+        "narHash": "sha256-RIFfgBuKz6Hp89yRr7+NR5tzIAbn52h8vT6vXkYjZoM=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "7e2a3b3dfd9af950a856d66b0a7d01e3c18aa249",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "lean": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "lean4-mode": "lean4-mode",
+        "nix": "nix",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1684657055,
+        "narHash": "sha256-88pPIe514ltykRuMjyaX9Wutm/xK18m7e+2awQnjBA8=",
+        "owner": "leanprover",
+        "repo": "lean4",
+        "rev": "8d4dd2311ccfa3de8dbcaba015b52e3ae1ed308d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "leanprover",
+        "repo": "lean4",
+        "type": "github"
+      }
+    },
+    "lean4-mode": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1676498134,
+        "narHash": "sha256-u3WvyKxOViZG53hkb8wd2/Og6muTecbh+NdflIgVeyk=",
+        "owner": "leanprover",
+        "repo": "lean4-mode",
+        "rev": "2c6ef33f476fdf5eb5e4fa4fa023ba8b11372440",
+        "type": "github"
+      },
+      "original": {
+        "owner": "leanprover",
+        "repo": "lean4-mode",
+        "type": "github"
+      }
+    },
+    "lowdown-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1633514407,
+        "narHash": "sha256-Dw32tiMjdK9t3ETl5fzGrutQTzh2rufgZV4A/BbxuD4=",
+        "owner": "kristapsdz",
+        "repo": "lowdown",
+        "rev": "d2c2b44ff6c27b936ec27358a2653caaef8f73b8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "kristapsdz",
+        "repo": "lowdown",
+        "type": "github"
+      }
+    },
+    "nix": {
+      "inputs": {
+        "lowdown-src": "lowdown-src",
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-regression": "nixpkgs-regression"
+      },
+      "locked": {
+        "lastModified": 1657097207,
+        "narHash": "sha256-SmeGmjWM3fEed3kQjqIAO8VpGmkC2sL1aPE7kKpK650=",
+        "owner": "NixOS",
+        "repo": "nix",
+        "rev": "f6316b49a0c37172bca87ede6ea8144d7d89832f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1653988320,
+        "narHash": "sha256-ZaqFFsSDipZ6KVqriwM34T739+KLYJvNmCWzErjAg7c=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "2fa57ed190fd6c7c746319444f34b5917666e5c1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-22.05-small",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-regression": {
+      "locked": {
+        "lastModified": 1643052045,
+        "narHash": "sha256-uGJ0VXIhWKGXxkeNnq4TvV3CIOkUJ3PAoLZ3HMzNVMw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1657208011,
+        "narHash": "sha256-BlIFwopAykvdy1DYayEkj6ZZdkn+cVgPNX98QVLc0jM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "2770cc0b1e8faa0e20eb2c6aea64c256a706d4f2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1659914493,
+        "narHash": "sha256-lkA5X3VNMKirvA+SUzvEhfA7XquWLci+CGi505YFAIs=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "022caabb5f2265ad4006c1fa5b1ebe69fb0c3faf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-21.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "lean": "lean",
+        "nixpkgs": "nixpkgs_3"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}