diff --git a/previewers/react-source/hdf5-previewer/package-lock.json b/previewers/react-source/hdf5-previewer/package-lock.json
index 0015732..cf79c4a 100644
--- a/previewers/react-source/hdf5-previewer/package-lock.json
+++ b/previewers/react-source/hdf5-previewer/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@h5web/app": "15.x",
         "@h5web/h5wasm": "15.x",
-        "axios": "1.18.1",
+        "axios": "1.20.0",
         "axios-hooks": "5.1.1",
         "normalize.css": "8.0.1",
         "react": "17.0.2",
@@ -2748,13 +2748,13 @@
       }
     },
     "node_modules/axios": {
-      "version": "1.18.1",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.18.1.tgz",
-      "integrity": "sha512-3nTvFlvpn9Zu/RkHUqtc7/+al4UpRW5az71ap5zccp6e8RAYEzhMTecX8Dz1wWDYrPpUoB1HAQEGEAEvUr7S9g==",
+      "version": "1.20.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.20.0.tgz",
+      "integrity": "sha512-r8aOh8j9cGKpgQAqpzrUHnSIc6a59Y3Xf/cv8sy1DrHCkZHzQGEuoq1tARk6qSyDdtQGSDgpb9kFlruzPvrgwg==",
       "license": "MIT",
       "dependencies": {
         "follow-redirects": "^1.16.0",
-        "form-data": "^4.0.5",
+        "form-data": "^4.0.6",
         "https-proxy-agent": "^5.0.1",
         "proxy-from-env": "^2.1.0"
       }
diff --git a/previewers/react-source/hdf5-previewer/package.json b/previewers/react-source/hdf5-previewer/package.json
index 97ab60f..1d7e06e 100644
--- a/previewers/react-source/hdf5-previewer/package.json
+++ b/previewers/react-source/hdf5-previewer/package.json
@@ -23,7 +23,7 @@
   "dependencies": {
     "@h5web/app": "15.x",
     "@h5web/h5wasm": "15.x",
-    "axios": "1.18.1",
+    "axios": "1.20.0",
     "axios-hooks": "5.1.1",
     "normalize.css": "8.0.1",
     "react": "17.0.2",