diff --git a/urls.json b/urls.json
index 0e4d62a..488c00b 100644
--- a/urls.json
+++ b/urls.json
@@ -9,7 +9,7 @@
     ],
     "ignored": false,
     "last_fetch": 1730163355,
-    "last_head": 1730595513,
+    "last_head": 1730681778,
     "mirror": "http://www.cs.virginia.edu/~bjc8c/archive/",
     "size": 271109057
   },
@@ -18,7 +18,7 @@
     "discovered": [],
     "ignored": false,
     "last_fetch": 1730163358,
-    "last_head": 1730595513,
+    "last_head": 1730681778,
     "mirror": "http://www.cs.virginia.edu/~bjc8c/archive/tock/",
     "size": 115305315
   },
@@ -27,7 +27,7 @@
     "discovered": [],
     "ignored": false,
     "last_fetch": 1730163362,
-    "last_head": 1730595513,
+    "last_head": 1730681778,
     "mirror": "http://www.cs.virginia.edu/~bjc8c/archive/tock/",
     "size": 139449871
   },
@@ -36,7 +36,7 @@
     "discovered": [],
     "ignored": false,
     "last_fetch": 1730163366,
-    "last_head": 1730595513,
+    "last_head": 1730681778,
     "mirror": "http://www.cs.virginia.edu/~bjc8c/archive/tock/",
     "size": 151249045
   },
@@ -45,7 +45,7 @@
     "discovered": [],
     "ignored": false,
     "last_fetch": 1730476148,
-    "last_head": 1730595513,
+    "last_head": 1730681778,
     "mirror": "http://www.cs.virginia.edu/~bjc8c/archive/tock/",
     "size": 169597393
   },
@@ -54,7 +54,7 @@
     "discovered": [],
     "ignored": false,
     "last_fetch": 1730163372,
-    "last_head": 1730595513,
+    "last_head": 1730681779,
     "mirror": "http://www.cs.virginia.edu/~bjc8c/archive/tock/",
     "size": 300158324
   },
@@ -63,7 +63,7 @@
     "discovered": [],
     "ignored": false,
     "last_fetch": 1730336127,
-    "last_head": 1730595513,
+    "last_head": 1730681779,
     "mirror": "http://www.cs.virginia.edu/~bjc8c/archive/tock/",
     "size": 314700571
   },
@@ -72,7 +72,7 @@
     "discovered": [],
     "ignored": false,
     "last_fetch": 1730476144,
-    "last_head": 1730595514,
+    "last_head": 1730681779,
     "mirror": "http://www.cs.virginia.edu/~bjc8c/archive/tock/",
     "size": 355123001
   },
@@ -86,7 +86,7 @@
     ],
     "ignored": false,
     "last_fetch": 1730336135,
-    "last_head": 1730595514,
+    "last_head": 1730681779,
     "mirror": "https://alpha.mirror.svc.schuermann.io/files/",
     "size": 271109057
   },
@@ -103,7 +103,7 @@
     ],
     "ignored": false,
     "last_fetch": 1730422750,
-    "last_head": 1730595514,
+    "last_head": 1730681779,
     "mirror": "https://alpha.mirror.svc.schuermann.io/files/tock/",
     "size": 271109057
   },
@@ -116,7 +116,7 @@
     ],
     "ignored": false,
     "last_fetch": 1730422751,
-    "last_head": 1730595514,
+    "last_head": 1730681779,
     "mirror": "https://alpha.mirror.svc.schuermann.io/files/tock/",
     "size": 115305315
   },
@@ -129,7 +129,7 @@
     ],
     "ignored": false,
     "last_fetch": 1730422752,
-    "last_head": 1730595514,
+    "last_head": 1730681779,
     "mirror": "https://alpha.mirror.svc.schuermann.io/files/tock/",
     "size": 139449871
   },
@@ -142,7 +142,7 @@
     ],
     "ignored": false,
     "last_fetch": 1730422754,
-    "last_head": 1730595515,
+    "last_head": 1730681780,
     "mirror": "https://alpha.mirror.svc.schuermann.io/files/tock/",
     "size": 151249045
   },
@@ -155,7 +155,7 @@
     ],
     "ignored": false,
     "last_fetch": 1730476409,
-    "last_head": 1730595515,
+    "last_head": 1730681780,
     "mirror": "https://alpha.mirror.svc.schuermann.io/files/tock/",
     "size": 169597393
   },
@@ -168,7 +168,7 @@
     ],
     "ignored": false,
     "last_fetch": 1730422756,
-    "last_head": 1730595515,
+    "last_head": 1730681780,
     "mirror": "https://alpha.mirror.svc.schuermann.io/files/tock/",
     "size": 300158324
   },
@@ -181,7 +181,7 @@
     ],
     "ignored": false,
     "last_fetch": 1730422759,
-    "last_head": 1730595515,
+    "last_head": 1730681780,
     "mirror": "https://alpha.mirror.svc.schuermann.io/files/tock/",
     "size": 314700571
   },
@@ -194,7 +194,7 @@
     ],
     "ignored": false,
     "last_fetch": 1730476419,
-    "last_head": 1730595515,
+    "last_head": 1730681780,
     "mirror": "https://alpha.mirror.svc.schuermann.io/files/tock/",
     "size": 355123001
   }