diff --git a/bespoke-dataset-viewer/package-lock.json b/bespoke-dataset-viewer/package-lock.json
index 97c34801..f9e02c46 100644
--- a/bespoke-dataset-viewer/package-lock.json
+++ b/bespoke-dataset-viewer/package-lock.json
@@ -36,6 +36,7 @@
       },
       "devDependencies": {
         "@types/node": "^20",
+        "@types/prismjs": "^1.26.5",
         "@types/react": "^18",
         "@types/react-dom": "^18",
         "eslint": "^8",
@@ -1860,6 +1861,13 @@
         "undici-types": "~6.19.2"
       }
     },
+    "node_modules/@types/prismjs": {
+      "version": "1.26.5",
+      "resolved": "https://registry.npmjs.org/@types/prismjs/-/prismjs-1.26.5.tgz",
+      "integrity": "sha512-AUZTa7hQ2KY5L7AmtSiqxlhWxb4ina0yd8hNbl4TWuqnv/pFP0nDMb3YrfSBf4hJVGLh2YEIBfKaBW/9UEl6IQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/prop-types": {
       "version": "15.7.13",
       "resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.13.tgz",
diff --git a/bespoke-dataset-viewer/package.json b/bespoke-dataset-viewer/package.json
index 62643150..dee9be50 100644
--- a/bespoke-dataset-viewer/package.json
+++ b/bespoke-dataset-viewer/package.json
@@ -37,6 +37,7 @@
   },
   "devDependencies": {
     "@types/node": "^20",
+    "@types/prismjs": "^1.26.5",
     "@types/react": "^18",
     "@types/react-dom": "^18",
     "eslint": "^8",