diff --git a/_extensions/quarto-openapi/package-lock.json b/_extensions/quarto-openapi/package-lock.json
index 5acb7b6..a03aed0 100644
--- a/_extensions/quarto-openapi/package-lock.json
+++ b/_extensions/quarto-openapi/package-lock.json
@@ -6,14 +6,14 @@
     "": {
       "name": "quarto-openapi-extension",
       "dependencies": {
-        "markdown-it": "^15.0.1",
+        "markdown-it": "^15.0.3",
         "yaml": "^2.9.0"
       }
     },
     "node_modules/argparse": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/argparse/-/argparse-3.0.1.tgz",
-      "integrity": "sha512-nM4mHF/KM1v59ZNKX7zfusQz5wUAxR511YG8Vo6TyiV4aqhu++rbJW4v04xsWhpSsHFj66flT8P7znVpyO20xQ==",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-3.0.3.tgz",
+      "integrity": "sha512-Sn98ftV3KfsO8xfLPHG6oT8y+b0yvbrLgZjgPDXsharNY15tTAjqIsIju4S32nl6/iEUNNE4v+yL2Zhm8ooP3w==",
       "funding": [
         {
           "type": "github",
@@ -58,9 +58,9 @@
       }
     },
     "node_modules/markdown-it": {
-      "version": "15.0.1",
-      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-15.0.1.tgz",
-      "integrity": "sha512-9/7gE95FNPkfUWrjJIoHZza2iLmuJlPD0UNMxPi7bxUrbCR525YZY0r+zyfes0dZI5ZZ/uNIXUJca0pJvtw41g==",
+      "version": "15.0.3",
+      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-15.0.3.tgz",
+      "integrity": "sha512-+Az7Ojz3iRGu8KYMvJ6xVhvrxP3eE+vEtJX75Ow88XBpcQNV/0lGX5ZynIIBftREo4DC2jsveAMDaeltmm8QvQ==",
       "funding": [
         {
           "type": "github",
@@ -73,9 +73,9 @@
       ],
       "license": "MIT",
       "dependencies": {
-        "argparse": "^3.0.0",
-        "entities": "^8.0.0",
-        "linkify-it": "^6.0.0",
+        "argparse": "^3.0.3",
+        "entities": "^8.1.0",
+        "linkify-it": "^6.1.0",
         "mdurl": "^2.1.0",
         "punycode.js": "^2.3.1",
         "uc.micro": "^3.0.0"
diff --git a/_extensions/quarto-openapi/package.json b/_extensions/quarto-openapi/package.json
index c51d335..1886e87 100644
--- a/_extensions/quarto-openapi/package.json
+++ b/_extensions/quarto-openapi/package.json
@@ -4,7 +4,7 @@
   "type": "module",
   "description": "Dependencies for the quarto-openapi pre-render script. node resolves bare specifiers from node_modules upward from the script's directory, so they must be installed here, not at the repo root.",
   "dependencies": {
-    "markdown-it": "^15.0.1",
+    "markdown-it": "^15.0.3",
     "yaml": "^2.9.0"
   }
 }
diff --git a/example/_extensions/posit-dev/quarto-openapi/package-lock.json b/example/_extensions/posit-dev/quarto-openapi/package-lock.json
index 5acb7b6..a03aed0 100644
--- a/example/_extensions/posit-dev/quarto-openapi/package-lock.json
+++ b/example/_extensions/posit-dev/quarto-openapi/package-lock.json
@@ -6,14 +6,14 @@
     "": {
       "name": "quarto-openapi-extension",
       "dependencies": {
-        "markdown-it": "^15.0.1",
+        "markdown-it": "^15.0.3",
         "yaml": "^2.9.0"
       }
     },
     "node_modules/argparse": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/argparse/-/argparse-3.0.1.tgz",
-      "integrity": "sha512-nM4mHF/KM1v59ZNKX7zfusQz5wUAxR511YG8Vo6TyiV4aqhu++rbJW4v04xsWhpSsHFj66flT8P7znVpyO20xQ==",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-3.0.3.tgz",
+      "integrity": "sha512-Sn98ftV3KfsO8xfLPHG6oT8y+b0yvbrLgZjgPDXsharNY15tTAjqIsIju4S32nl6/iEUNNE4v+yL2Zhm8ooP3w==",
       "funding": [
         {
           "type": "github",
@@ -58,9 +58,9 @@
       }
     },
     "node_modules/markdown-it": {
-      "version": "15.0.1",
-      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-15.0.1.tgz",
-      "integrity": "sha512-9/7gE95FNPkfUWrjJIoHZza2iLmuJlPD0UNMxPi7bxUrbCR525YZY0r+zyfes0dZI5ZZ/uNIXUJca0pJvtw41g==",
+      "version": "15.0.3",
+      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-15.0.3.tgz",
+      "integrity": "sha512-+Az7Ojz3iRGu8KYMvJ6xVhvrxP3eE+vEtJX75Ow88XBpcQNV/0lGX5ZynIIBftREo4DC2jsveAMDaeltmm8QvQ==",
       "funding": [
         {
           "type": "github",
@@ -73,9 +73,9 @@
       ],
       "license": "MIT",
       "dependencies": {
-        "argparse": "^3.0.0",
-        "entities": "^8.0.0",
-        "linkify-it": "^6.0.0",
+        "argparse": "^3.0.3",
+        "entities": "^8.1.0",
+        "linkify-it": "^6.1.0",
         "mdurl": "^2.1.0",
         "punycode.js": "^2.3.1",
         "uc.micro": "^3.0.0"
diff --git a/example/_extensions/posit-dev/quarto-openapi/package.json b/example/_extensions/posit-dev/quarto-openapi/package.json
index c51d335..1886e87 100644
--- a/example/_extensions/posit-dev/quarto-openapi/package.json
+++ b/example/_extensions/posit-dev/quarto-openapi/package.json
@@ -4,7 +4,7 @@
   "type": "module",
   "description": "Dependencies for the quarto-openapi pre-render script. node resolves bare specifiers from node_modules upward from the script's directory, so they must be installed here, not at the repo root.",
   "dependencies": {
-    "markdown-it": "^15.0.1",
+    "markdown-it": "^15.0.3",
     "yaml": "^2.9.0"
   }
 }