diff --git a/nix/t1/dependencies/_sources/generated.json b/nix/t1/dependencies/_sources/generated.json
index ddf8e4ed2..a3d4387f5 100644
--- a/nix/t1/dependencies/_sources/generated.json
+++ b/nix/t1/dependencies/_sources/generated.json
@@ -41,7 +41,7 @@
     },
     "chisel": {
         "cargoLocks": null,
-        "date": "2024-10-16",
+        "date": "2024-10-18",
         "extract": null,
         "name": "chisel",
         "passthru": null,
@@ -53,11 +53,11 @@
             "name": null,
             "owner": "chipsalliance",
             "repo": "chisel",
-            "rev": "d564445dbcd81c6ac3319ef9442db2d177ae124f",
-            "sha256": "sha256-V8CxQ5VIkk2c+7KlQIcQX6Qe2PbMZI7/q+5e4iDXajI=",
+            "rev": "8c718b2b634a7b1aba3a4df54549a280042ba80a",
+            "sha256": "sha256-1pfQ2EXryl7RxZnNls8G4uUIKE1WxTwqSkCFzl1fOcs=",
             "type": "github"
         },
-        "version": "d564445dbcd81c6ac3319ef9442db2d177ae124f"
+        "version": "8c718b2b634a7b1aba3a4df54549a280042ba80a"
     },
     "chisel-interface": {
         "cargoLocks": null,
diff --git a/nix/t1/dependencies/_sources/generated.nix b/nix/t1/dependencies/_sources/generated.nix
index aa411b29d..e6339d28e 100644
--- a/nix/t1/dependencies/_sources/generated.nix
+++ b/nix/t1/dependencies/_sources/generated.nix
@@ -27,15 +27,15 @@
   };
   chisel = {
     pname = "chisel";
-    version = "d564445dbcd81c6ac3319ef9442db2d177ae124f";
+    version = "8c718b2b634a7b1aba3a4df54549a280042ba80a";
     src = fetchFromGitHub {
       owner = "chipsalliance";
       repo = "chisel";
-      rev = "d564445dbcd81c6ac3319ef9442db2d177ae124f";
+      rev = "8c718b2b634a7b1aba3a4df54549a280042ba80a";
       fetchSubmodules = false;
-      sha256 = "sha256-V8CxQ5VIkk2c+7KlQIcQX6Qe2PbMZI7/q+5e4iDXajI=";
+      sha256 = "sha256-1pfQ2EXryl7RxZnNls8G4uUIKE1WxTwqSkCFzl1fOcs=";
     };
-    date = "2024-10-16";
+    date = "2024-10-18";
   };
   chisel-interface = {
     pname = "chisel-interface";