diff --git a/manifests/cosign.json b/manifests/cosign.json
index d3e68e37..70f7d2a4 100644
--- a/manifests/cosign.json
+++ b/manifests/cosign.json
@@ -35,6 +35,40 @@
   "3.1": {
     "version": "3.1.2"
   },
+  "3.1.3": {
+    "x86_64_linux_musl": {
+      "etag": "0x8DEF356B36E38D2",
+      "hash": "4629c757b7618056f8ddd7e2625ae9fdd94c0372a65049520bc7d9df9efc7f71"
+    },
+    "x86_64_macos": {
+      "etag": "0x8DEF356BDC32FF5",
+      "hash": "2347488e5d5b25336644024dfeca5601b190e91197a71a917bda44744aff106c"
+    },
+    "x86_64_windows": {
+      "etag": "0x8DEF356C37B8B8E",
+      "hash": "9fe59be0eca1271873ce019061335eb1ac419b7059202e797828467ddabe33be"
+    },
+    "aarch64_linux_musl": {
+      "etag": "0x8DEF356C5BBD609",
+      "hash": "c5d324e091826b0d7a78eb16fef316450b4eb9aaec045611c08ba06f5e73220a"
+    },
+    "aarch64_macos": {
+      "etag": "0x8DEF356C033944B",
+      "hash": "5cf948c2f4dfe59687bdd0b8523709067383e03982cc543475c8a7dc70e92a76"
+    },
+    "powerpc64le_linux_musl": {
+      "etag": "0x8DEF356BB964360",
+      "hash": "15619e924681c97e0fb4f79c0eb8ef5d29665a06fe6a25078500985aed79321b"
+    },
+    "riscv64_linux_musl": {
+      "etag": "0x8DEF356CCCA5A46",
+      "hash": "9736177c6be33e4493304fc34feb8aa29209d531b3d40142d7e2a40bbe2f542f"
+    },
+    "s390x_linux_musl": {
+      "etag": "0x8DEF356B89B11E4",
+      "hash": "253b571ef9e1aef72ef56d74f464ef9fe5182dc83b1ab430bbffbc4c8e43e7fd"
+    }
+  },
   "3.1.2": {
     "x86_64_linux_musl": {
       "etag": "0x8DEE41461869426",