diff --git a/.changeset/swift-cups-brush.md b/.changeset/swift-cups-brush.md
new file mode 100644
index 00000000..7eefe0f1
--- /dev/null
+++ b/.changeset/swift-cups-brush.md
@@ -0,0 +1,5 @@
+---
+"@sigstore/mock": patch
+---
+
+Bump nock from 13.5.1 to 13.5.3
diff --git a/package-lock.json b/package-lock.json
index 6674705a..c8524ccc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,7 +24,7 @@
         "eslint-config-prettier": "^9.1.0",
         "eslint-plugin-prettier": "^5.1.3",
         "jest": "^29.7.0",
-        "nock": "^13.5.1",
+        "nock": "^13.5.3",
         "prettier": "^3.2.5",
         "shx": "^0.3.3",
         "typescript": "^5.3.3"
@@ -3850,9 +3850,9 @@
       }
     },
     "node_modules/@oclif/core": {
-      "version": "3.19.2",
-      "resolved": "https://registry.npmjs.org/@oclif/core/-/core-3.19.2.tgz",
-      "integrity": "sha512-/kUZZQZO92esToSTn+fnfMQdAj8uDJ/lsMNXBRBCiLQpwnIskHXy8JzYpynxxkzY2wbGREBceQhxCyDV0XpY4g==",
+      "version": "3.19.3",
+      "resolved": "https://registry.npmjs.org/@oclif/core/-/core-3.19.3.tgz",
+      "integrity": "sha512-pILSMpQ1ltAe51dgGxVsjfEVaZrRSEE3pKBGh/GtUkmVCJCP2MiS4AFg1qiLGrwjks0WrzSii3QdM4jDLyMAAA==",
       "dependencies": {
         "@types/cli-progress": "^3.11.5",
         "ansi-escapes": "^4.3.2",
@@ -3935,11 +3935,11 @@
       }
     },
     "node_modules/@oclif/plugin-help": {
-      "version": "6.0.12",
-      "resolved": "https://registry.npmjs.org/@oclif/plugin-help/-/plugin-help-6.0.12.tgz",
-      "integrity": "sha512-KMxQ5Oli1tkWiWNSdrjNtiFIFZvX0+IsvuuGcDwJIn1Jm+SzEQF90vkK6WzIjFACmyKIwXbGMmimcFaLrslJPQ==",
+      "version": "6.0.13",
+      "resolved": "https://registry.npmjs.org/@oclif/plugin-help/-/plugin-help-6.0.13.tgz",
+      "integrity": "sha512-D/hiHmg+c6eOny95VfbhBcdgGxbi4AU2I3s1nFit0wpV2YziZnjmD7NQvYUCUJB052RcVmni6NiegttLgM4y5g==",
       "dependencies": {
-        "@oclif/core": "^3.18.1"
+        "@oclif/core": "^3.19.2"
       },
       "engines": {
         "node": ">=18.0.0"
@@ -11885,9 +11885,9 @@
       }
     },
     "node_modules/nock": {
-      "version": "13.5.1",
-      "resolved": "https://registry.npmjs.org/nock/-/nock-13.5.1.tgz",
-      "integrity": "sha512-+s7b73fzj5KnxbKH4Oaqz07tQ8degcMilU4rrmnKvI//b0JMBU4wEXFQ8zqr+3+L4eWSfU3H/UoIVGUV0tue1Q==",
+      "version": "13.5.3",
+      "resolved": "https://registry.npmjs.org/nock/-/nock-13.5.3.tgz",
+      "integrity": "sha512-2NlGmHIK2rTeyy7UaY1ZNg0YZfEJMxghXgZi0b4DBsUyoDNTTxZeCSG1nmirAWF44RkkoV8NnegLVQijgVapNQ==",
       "dependencies": {
         "debug": "^4.1.0",
         "json-stringify-safe": "^5.0.1",
@@ -16043,7 +16043,7 @@
         "bytestreamjs": "^2.0.1",
         "canonicalize": "^2.0.0",
         "jose": "^5.2.2",
-        "nock": "^13.5.1",
+        "nock": "^13.5.3",
         "pkijs": "^3.0.15",
         "pvutils": "^1.1.3"
       },
@@ -19305,9 +19305,9 @@
       }
     },
     "@oclif/core": {
-      "version": "3.19.2",
-      "resolved": "https://registry.npmjs.org/@oclif/core/-/core-3.19.2.tgz",
-      "integrity": "sha512-/kUZZQZO92esToSTn+fnfMQdAj8uDJ/lsMNXBRBCiLQpwnIskHXy8JzYpynxxkzY2wbGREBceQhxCyDV0XpY4g==",
+      "version": "3.19.3",
+      "resolved": "https://registry.npmjs.org/@oclif/core/-/core-3.19.3.tgz",
+      "integrity": "sha512-pILSMpQ1ltAe51dgGxVsjfEVaZrRSEE3pKBGh/GtUkmVCJCP2MiS4AFg1qiLGrwjks0WrzSii3QdM4jDLyMAAA==",
       "requires": {
         "@types/cli-progress": "^3.11.5",
         "ansi-escapes": "^4.3.2",
@@ -19374,11 +19374,11 @@
       }
     },
     "@oclif/plugin-help": {
-      "version": "6.0.12",
-      "resolved": "https://registry.npmjs.org/@oclif/plugin-help/-/plugin-help-6.0.12.tgz",
-      "integrity": "sha512-KMxQ5Oli1tkWiWNSdrjNtiFIFZvX0+IsvuuGcDwJIn1Jm+SzEQF90vkK6WzIjFACmyKIwXbGMmimcFaLrslJPQ==",
+      "version": "6.0.13",
+      "resolved": "https://registry.npmjs.org/@oclif/plugin-help/-/plugin-help-6.0.13.tgz",
+      "integrity": "sha512-D/hiHmg+c6eOny95VfbhBcdgGxbi4AU2I3s1nFit0wpV2YziZnjmD7NQvYUCUJB052RcVmni6NiegttLgM4y5g==",
       "requires": {
-        "@oclif/core": "^3.18.1"
+        "@oclif/core": "^3.19.2"
       }
     },
     "@oclif/plugin-not-found": {
@@ -19809,7 +19809,7 @@
         "canonicalize": "^2.0.0",
         "jose": "^5.2.2",
         "make-fetch-happen": "^13.0.0",
-        "nock": "^13.5.1",
+        "nock": "^13.5.3",
         "pkijs": "^3.0.15",
         "pvutils": "^1.1.3"
       }
@@ -25342,9 +25342,9 @@
       }
     },
     "nock": {
-      "version": "13.5.1",
-      "resolved": "https://registry.npmjs.org/nock/-/nock-13.5.1.tgz",
-      "integrity": "sha512-+s7b73fzj5KnxbKH4Oaqz07tQ8degcMilU4rrmnKvI//b0JMBU4wEXFQ8zqr+3+L4eWSfU3H/UoIVGUV0tue1Q==",
+      "version": "13.5.3",
+      "resolved": "https://registry.npmjs.org/nock/-/nock-13.5.3.tgz",
+      "integrity": "sha512-2NlGmHIK2rTeyy7UaY1ZNg0YZfEJMxghXgZi0b4DBsUyoDNTTxZeCSG1nmirAWF44RkkoV8NnegLVQijgVapNQ==",
       "requires": {
         "debug": "^4.1.0",
         "json-stringify-safe": "^5.0.1",
diff --git a/package.json b/package.json
index 99c40275..bd89e309 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.1.3",
     "jest": "^29.7.0",
-    "nock": "^13.5.1",
+    "nock": "^13.5.3",
     "prettier": "^3.2.5",
     "shx": "^0.3.3",
     "typescript": "^5.3.3"
diff --git a/packages/mock/package.json b/packages/mock/package.json
index 917e952a..2baab455 100644
--- a/packages/mock/package.json
+++ b/packages/mock/package.json
@@ -37,7 +37,7 @@
     "bytestreamjs": "^2.0.1",
     "canonicalize": "^2.0.0",
     "jose": "^5.2.2",
-    "nock": "^13.5.1",
+    "nock": "^13.5.3",
     "pkijs": "^3.0.15",
     "pvutils": "^1.1.3"
   },