diff --git a/.github/remark.yaml b/.github/remark.yaml
index cf5cae4..a26695c 100644
--- a/.github/remark.yaml
+++ b/.github/remark.yaml
@@ -1,4 +1,6 @@
 plugins:
+# GitHub Flavored Markdown
+  - remark-gfm
 # Check links
   - validate-links
 # Apply some recommended defaults for consistency
@@ -8,6 +10,7 @@ plugins:
 # General formatting
   - - remark-lint-emphasis-marker
     - '*'
+  - remark-lint-no-undefined-references
   - remark-lint-hard-break-spaces
   - remark-lint-blockquote-indentation
   - remark-lint-no-consecutive-blank-lines
diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 4836867..fc28054 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Inject env variables
-        uses: rlespinasse/github-slug-action@v3.x
+        uses: rlespinasse/github-slug-action@v4.4.1
       - uses: actions/checkout@v4
       - name: deploy JSON Schema for version ${{ env.GITHUB_REF_SLUG }}
         uses: peaceiris/actions-gh-pages@v4
diff --git a/package.json b/package.json
index 28a8654..0b1f5c9 100644
--- a/package.json
+++ b/package.json
@@ -8,14 +8,14 @@
     "format-examples": "stac-node-validator . --format --schemaMap https://stac-extensions.github.io/template/v1.0.0/schema.json=./json-schema/schema.json"
   },
   "dependencies": {
-    "remark-cli": "^11.0.0",
-    "remark-gfm": "^3.0.1",
+    "remark-cli": "^12.0.0",
+    "remark-gfm": "^4.0.0",
     "remark-lint": "^10.0.0",
     "remark-lint-no-html": "^3.1.2",
-    "remark-preset-lint-consistent": "^5.1.1",
-    "remark-preset-lint-markdown-style-guide": "^5.1.2",
-    "remark-preset-lint-recommended": "^6.1.2",
+    "remark-preset-lint-consistent": "^5.1.2",
+    "remark-preset-lint-markdown-style-guide": "^5.1.3",
+    "remark-preset-lint-recommended": "^6.1.3",
     "remark-validate-links": "^13.0.0",
-    "stac-node-validator": "^1.0.0"
+    "stac-node-validator": "^1.3.0"
   }
 }