diff --git a/package-lock.json b/package-lock.json
index 513c8e6..d23e376 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,10 +10,10 @@
       "license": "MIT",
       "dependencies": {
         "@tryghost/admin-api": "^1.13.12",
-        "@tryghost/content-api": "^1.5.1",
+        "@tryghost/content-api": "^1.11.21",
         "flatted": "^3.1.1",
         "mysql": "^2.18.1",
-        "postmark": "^2.7.3",
+        "postmark": "^4.0.5",
         "sqlite3": "^4.2.0"
       }
     },
@@ -28,23 +28,13 @@
         "jsonwebtoken": "^9.0.0"
       }
     },
-    "node_modules/@tryghost/admin-api/node_modules/axios": {
-      "version": "1.8.2",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.8.2.tgz",
-      "integrity": "sha512-ls4GYBm5aig9vWx8AWDSGLpnpDQRtWAfrjU+EuytuODrFBkqesN2RkOQCBzrA1RQNHw1SmRMSDDDSwzNAYQ6Rg==",
-      "license": "MIT",
-      "dependencies": {
-        "follow-redirects": "^1.15.6",
-        "form-data": "^4.0.0",
-        "proxy-from-env": "^1.1.0"
-      }
-    },
     "node_modules/@tryghost/content-api": {
-      "version": "1.5.13",
-      "resolved": "https://registry.npmjs.org/@tryghost/content-api/-/content-api-1.5.13.tgz",
-      "integrity": "sha512-wH8fj9cixj/Wb4c1BqQTrlY1tbq2RxpKsUzVo6qf+xW1LRwwEN5Z7c4cA07bUoyFrJ70ii1Xqbm2WG11+n09zg==",
+      "version": "1.11.21",
+      "resolved": "https://registry.npmjs.org/@tryghost/content-api/-/content-api-1.11.21.tgz",
+      "integrity": "sha512-ozJqEMHDUO7D0SGxPbUnG+RvwBbzC3zmdGOW8cFvkcKzrhe7uOAmVKyq7/J3kRAM2QthTlmiDpqp7NEo9ZLlKg==",
+      "license": "MIT",
       "dependencies": {
-        "axios": "^0.21.1"
+        "axios": "^1.0.0"
       }
     },
     "node_modules/abbrev": {
@@ -81,11 +71,14 @@
       "license": "MIT"
     },
     "node_modules/axios": {
-      "version": "0.21.4",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-0.21.4.tgz",
-      "integrity": "sha512-ut5vewkiu8jjGBdqpM44XxjuCjq9LAKeHVmoVfHVzy8eHgxxq8SbAVQNovDA8mVi05kP0Ea/n/UzcSHcTJQfNg==",
+      "version": "1.8.2",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.8.2.tgz",
+      "integrity": "sha512-ls4GYBm5aig9vWx8AWDSGLpnpDQRtWAfrjU+EuytuODrFBkqesN2RkOQCBzrA1RQNHw1SmRMSDDDSwzNAYQ6Rg==",
+      "license": "MIT",
       "dependencies": {
-        "follow-redirects": "^1.14.0"
+        "follow-redirects": "^1.15.6",
+        "form-data": "^4.0.0",
+        "proxy-from-env": "^1.1.0"
       }
     },
     "node_modules/balanced-match": {
@@ -880,11 +873,12 @@
       }
     },
     "node_modules/postmark": {
-      "version": "2.7.8",
-      "resolved": "https://registry.npmjs.org/postmark/-/postmark-2.7.8.tgz",
-      "integrity": "sha512-DvOLcgYSM5+NEKrdQsrpnkX9tAP/apZRMEL9Z0UjY2Fh9kBBhLMCAKm9hANSUeTugrmOiKe3DWu/tSSUIu2CIw==",
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/postmark/-/postmark-4.0.5.tgz",
+      "integrity": "sha512-nerZdd3TwOH4CgGboZnlUM/q7oZk0EqpZgJL+Y3Nup8kHeaukxouQ6JcFF3EJEijc4QbuNv1TefGhboAKtf/SQ==",
+      "license": "MIT",
       "dependencies": {
-        "axios": "^0.21.4"
+        "axios": "^1.7.4"
       }
     },
     "node_modules/process-nextick-args": {
@@ -1086,26 +1080,14 @@
         "axios": "^1.0.0",
         "form-data": "^4.0.0",
         "jsonwebtoken": "^9.0.0"
-      },
-      "dependencies": {
-        "axios": {
-          "version": "1.8.2",
-          "resolved": "https://registry.npmjs.org/axios/-/axios-1.8.2.tgz",
-          "integrity": "sha512-ls4GYBm5aig9vWx8AWDSGLpnpDQRtWAfrjU+EuytuODrFBkqesN2RkOQCBzrA1RQNHw1SmRMSDDDSwzNAYQ6Rg==",
-          "requires": {
-            "follow-redirects": "^1.15.6",
-            "form-data": "^4.0.0",
-            "proxy-from-env": "^1.1.0"
-          }
-        }
       }
     },
     "@tryghost/content-api": {
-      "version": "1.5.13",
-      "resolved": "https://registry.npmjs.org/@tryghost/content-api/-/content-api-1.5.13.tgz",
-      "integrity": "sha512-wH8fj9cixj/Wb4c1BqQTrlY1tbq2RxpKsUzVo6qf+xW1LRwwEN5Z7c4cA07bUoyFrJ70ii1Xqbm2WG11+n09zg==",
+      "version": "1.11.21",
+      "resolved": "https://registry.npmjs.org/@tryghost/content-api/-/content-api-1.11.21.tgz",
+      "integrity": "sha512-ozJqEMHDUO7D0SGxPbUnG+RvwBbzC3zmdGOW8cFvkcKzrhe7uOAmVKyq7/J3kRAM2QthTlmiDpqp7NEo9ZLlKg==",
       "requires": {
-        "axios": "^0.21.1"
+        "axios": "^1.0.0"
       }
     },
     "abbrev": {
@@ -1138,11 +1120,13 @@
       "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="
     },
     "axios": {
-      "version": "0.21.4",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-0.21.4.tgz",
-      "integrity": "sha512-ut5vewkiu8jjGBdqpM44XxjuCjq9LAKeHVmoVfHVzy8eHgxxq8SbAVQNovDA8mVi05kP0Ea/n/UzcSHcTJQfNg==",
+      "version": "1.8.2",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.8.2.tgz",
+      "integrity": "sha512-ls4GYBm5aig9vWx8AWDSGLpnpDQRtWAfrjU+EuytuODrFBkqesN2RkOQCBzrA1RQNHw1SmRMSDDDSwzNAYQ6Rg==",
       "requires": {
-        "follow-redirects": "^1.14.0"
+        "follow-redirects": "^1.15.6",
+        "form-data": "^4.0.0",
+        "proxy-from-env": "^1.1.0"
       }
     },
     "balanced-match": {
@@ -1749,11 +1733,11 @@
       "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
     },
     "postmark": {
-      "version": "2.7.8",
-      "resolved": "https://registry.npmjs.org/postmark/-/postmark-2.7.8.tgz",
-      "integrity": "sha512-DvOLcgYSM5+NEKrdQsrpnkX9tAP/apZRMEL9Z0UjY2Fh9kBBhLMCAKm9hANSUeTugrmOiKe3DWu/tSSUIu2CIw==",
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/postmark/-/postmark-4.0.5.tgz",
+      "integrity": "sha512-nerZdd3TwOH4CgGboZnlUM/q7oZk0EqpZgJL+Y3Nup8kHeaukxouQ6JcFF3EJEijc4QbuNv1TefGhboAKtf/SQ==",
       "requires": {
-        "axios": "^0.21.4"
+        "axios": "^1.7.4"
       }
     },
     "process-nextick-args": {
diff --git a/package.json b/package.json
index 98dd9e7..e90c9cd 100644
--- a/package.json
+++ b/package.json
@@ -5,10 +5,10 @@
   "main": "index.js",
   "dependencies": {
     "@tryghost/admin-api": "^1.13.12",
-    "@tryghost/content-api": "^1.5.1",
+    "@tryghost/content-api": "^1.11.21",
     "flatted": "^3.1.1",
     "mysql": "^2.18.1",
-    "postmark": "^2.7.3",
+    "postmark": "^4.0.5",
     "sqlite3": "^4.2.0"
   },
   "scripts": {