diff --git a/packages/ipfs-unixfs-exporter/.aegir.js b/packages/ipfs-unixfs-exporter/.aegir.js
index e99bbba0..26267210 100644
--- a/packages/ipfs-unixfs-exporter/.aegir.js
+++ b/packages/ipfs-unixfs-exporter/.aegir.js
@@ -3,5 +3,14 @@
 module.exports = {
   karma: {
     browserNoActivityTimeout: 1000 * 1000,
+  },
+  webpack: {
+    node: {
+      // needed by the cbor module
+      stream: true,
+
+      // needed by the core-util-is module
+      Buffer: true
+    }
   }
 }
diff --git a/packages/ipfs-unixfs-exporter/package.json b/packages/ipfs-unixfs-exporter/package.json
index 03435429..ae192d77 100644
--- a/packages/ipfs-unixfs-exporter/package.json
+++ b/packages/ipfs-unixfs-exporter/package.json
@@ -36,7 +36,7 @@
   "homepage": "https://github.com/ipfs/js-ipfs-unixfs#readme",
   "devDependencies": {
     "abort-controller": "^3.0.0",
-    "aegir": "^25.0.0",
+    "aegir": "^26.0.0",
     "detect-node": "^2.0.4",
     "ipfs-unixfs-importer": "^3.0.2",
     "ipld": "^0.27.0",
@@ -55,7 +55,7 @@
     "err-code": "^2.0.0",
     "hamt-sharding": "^1.0.0",
     "ipfs-unixfs": "^2.0.2",
-    "ipfs-utils": "^2.3.1",
+    "ipfs-utils": "^3.0.0",
     "it-last": "^1.0.1",
     "multihashing-async": "^2.0.0"
   }
diff --git a/packages/ipfs-unixfs-importer/.aegir.js b/packages/ipfs-unixfs-importer/.aegir.js
index 69129724..40377838 100644
--- a/packages/ipfs-unixfs-importer/.aegir.js
+++ b/packages/ipfs-unixfs-importer/.aegir.js
@@ -3,5 +3,14 @@
 module.exports = {
   karma: {
     browserNoActivityTimeout: 500 * 1000
+  },
+  webpack: {
+    node: {
+      // needed by the cbor module
+      stream: true,
+
+      // needed by the core-util-is module
+      Buffer: true
+    }
   }
 }
diff --git a/packages/ipfs-unixfs-importer/package.json b/packages/ipfs-unixfs-importer/package.json
index 43930570..dc2f5d57 100644
--- a/packages/ipfs-unixfs-importer/package.json
+++ b/packages/ipfs-unixfs-importer/package.json
@@ -35,7 +35,7 @@
   },
   "homepage": "https://github.com/ipfs/js-ipfs-unixfs#readme",
   "devDependencies": {
-    "aegir": "^25.0.0",
+    "aegir": "^26.0.0",
     "cids": "^1.0.0",
     "detect-node": "^2.0.4",
     "ipfs-unixfs-exporter": "^3.0.2",
@@ -43,7 +43,6 @@
     "ipld-in-memory": "^6.0.0",
     "it-buffer-stream": "^1.0.2",
     "it-last": "^1.0.1",
-    "merge-options": "^2.0.0",
     "multicodec": "^2.0.0",
     "nyc": "^15.0.0",
     "sinon": "^9.0.1"
@@ -53,15 +52,15 @@
     "err-code": "^2.0.0",
     "hamt-sharding": "^1.0.0",
     "ipfs-unixfs": "^2.0.2",
-    "ipfs-utils": "^2.3.1",
+    "ipfs-utils": "^3.0.0",
     "ipld-dag-pb": "^0.20.0",
     "it-all": "^1.0.1",
     "it-batch": "^1.0.3",
     "it-first": "^1.0.1",
     "it-parallel-batch": "^1.0.3",
-    "merge-options": "^2.0.0",
+    "merge-options": "^3.0.1",
     "multihashing-async": "^2.0.0",
     "rabin-wasm": "^0.1.1",
-    "uint8arrays": "^1.0.0"
+    "uint8arrays": "^1.1.0"
   }
 }
diff --git a/packages/ipfs-unixfs/package.json b/packages/ipfs-unixfs/package.json
index ad8b404a..987fdd1c 100644
--- a/packages/ipfs-unixfs/package.json
+++ b/packages/ipfs-unixfs/package.json
@@ -35,9 +35,9 @@
   },
   "homepage": "https://github.com/ipfs/js-ipfs-unixfs#readme",
   "devDependencies": {
-    "aegir": "^25.0.0",
+    "aegir": "^26.0.0",
     "nyc": "^15.0.0",
-    "uint8arrays": "^1.0.0"
+    "uint8arrays": "^1.1.0"
   },
   "dependencies": {
     "err-code": "^2.0.0",