diff --git a/.eslintrc.js b/.eslintrc.js
index dc7fd432..4398935e 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -24,6 +24,13 @@ module.exports = {
         '@metamask/eslint-config-nodejs',
       ],
     },
+
+    {
+      files: ['*.d.ts'],
+      rules: {
+        'import/unambiguous': 'off',
+      },
+    },
   ],
 
   ignorePatterns: [
diff --git a/package.json b/package.json
index 0f0a080e..832b7dca 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "@metamask/eth-hd-keyring": "^7.0.1",
     "@metamask/eth-sig-util": "^7.0.0",
     "@metamask/eth-simple-keyring": "^6.0.1",
-    "@metamask/obs-store": "^8.1.0",
+    "@metamask/obs-store": "^9.0.0",
     "@metamask/utils": "^8.2.0"
   },
   "devDependencies": {
diff --git a/src/readable-stream.d.ts b/src/readable-stream.d.ts
new file mode 100644
index 00000000..e7272e3a
--- /dev/null
+++ b/src/readable-stream.d.ts
@@ -0,0 +1,4 @@
+/* eslint-disable import/no-nodejs-modules */
+declare module 'readable-stream' {
+  export { Duplex, Transform } from 'stream';
+}
diff --git a/yarn.lock b/yarn.lock
index 19f629cf..3a0e2c5a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1216,7 +1216,7 @@ __metadata:
     "@metamask/eth-hd-keyring": ^7.0.1
     "@metamask/eth-sig-util": ^7.0.0
     "@metamask/eth-simple-keyring": ^6.0.1
-    "@metamask/obs-store": ^8.1.0
+    "@metamask/obs-store": ^9.0.0
     "@metamask/utils": ^8.2.0
     "@types/jest": ^29.4.0
     "@types/node": ^16.18.46
@@ -1276,20 +1276,20 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@metamask/obs-store@npm:^8.1.0":
-  version: 8.1.0
-  resolution: "@metamask/obs-store@npm:8.1.0"
+"@metamask/obs-store@npm:^9.0.0":
+  version: 9.0.0
+  resolution: "@metamask/obs-store@npm:9.0.0"
   dependencies:
-    "@metamask/safe-event-emitter": ^2.0.0
-    through2: ^2.0.3
-  checksum: 92356067fa3517526d656f2f0bdfbc4d39f65e27fb30d84240cfc9c1aa9cd5d743498952df18ed8efbb8887b6cc1bc1fab37bde3fb0fc059539e0dfcc67ff86f
+    "@metamask/safe-event-emitter": ^3.0.0
+    readable-stream: ^3.6.2
+  checksum: 1c202a5bbdc79a6b8b3fba946c09dc5521e87260956d30db6543e7bf3d95bd44ebd958f509e3e7332041845176487fe78d3b40bdedbc213061ba849fd978e468
   languageName: node
   linkType: hard
 
-"@metamask/safe-event-emitter@npm:^2.0.0":
-  version: 2.0.0
-  resolution: "@metamask/safe-event-emitter@npm:2.0.0"
-  checksum: 8b717ac5d53df0027c05509f03d0534700b5898dd1c3a53fb2dc4c0499ca5971b14aae67f522d09eb9f509e77f50afa95fdb3eda1afbff8b071c18a3d2905e93
+"@metamask/safe-event-emitter@npm:^3.0.0":
+  version: 3.0.0
+  resolution: "@metamask/safe-event-emitter@npm:3.0.0"
+  checksum: 8dc58a76f9f75bf2405931465fc311c68043d851e6b8ebe9f82ae339073a08a83430dba9338f8e3adc4bfc8067607125074bcafa32baee3a5157f42343dc89e5
   languageName: node
   linkType: hard
 
@@ -3453,13 +3453,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"core-util-is@npm:~1.0.0":
-  version: 1.0.3
-  resolution: "core-util-is@npm:1.0.3"
-  checksum: 9de8597363a8e9b9952491ebe18167e3b36e7707569eed0ebf14f8bba773611376466ae34575bca8cfe3c767890c859c74056084738f09d4e4a6f902b2ad7d99
-  languageName: node
-  linkType: hard
-
 "cosmiconfig@npm:^7.1.0":
   version: 7.1.0
   resolution: "cosmiconfig@npm:7.1.0"
@@ -5053,7 +5046,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"inherits@npm:2, inherits@npm:^2.0.3, inherits@npm:^2.0.4, inherits@npm:~2.0.3":
+"inherits@npm:2, inherits@npm:^2.0.3, inherits@npm:^2.0.4":
   version: 2.0.4
   resolution: "inherits@npm:2.0.4"
   checksum: 4a48a733847879d6cf6691860a6b1e3f0f4754176e4d71494c41f3475553768b10f84b5ce1d40fbd0e34e6bfbb864ee35858ad4dd2cf31e02fc4a154b724d7f1
@@ -5416,13 +5409,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"isarray@npm:~1.0.0":
-  version: 1.0.0
-  resolution: "isarray@npm:1.0.0"
-  checksum: f032df8e02dce8ec565cf2eb605ea939bdccea528dbcf565cdf92bfa2da9110461159d86a537388ef1acef8815a330642d7885b29010e8f7eac967c9993b65ab
-  languageName: node
-  linkType: hard
-
 "isexe@npm:^2.0.0":
   version: 2.0.0
   resolution: "isexe@npm:2.0.0"
@@ -6999,13 +6985,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"process-nextick-args@npm:~2.0.0":
-  version: 2.0.1
-  resolution: "process-nextick-args@npm:2.0.1"
-  checksum: 1d38588e520dab7cea67cbbe2efdd86a10cc7a074c09657635e34f035277b59fbb57d09d8638346bf7090f8e8ebc070c96fa5fd183b777fff4f5edff5e9466cf
-  languageName: node
-  linkType: hard
-
 "promise-inflight@npm:^1.0.1":
   version: 1.0.1
   resolution: "promise-inflight@npm:1.0.1"
@@ -7177,7 +7156,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"readable-stream@npm:^3.1.1, readable-stream@npm:^3.4.0, readable-stream@npm:^3.6.0":
+"readable-stream@npm:^3.1.1, readable-stream@npm:^3.4.0, readable-stream@npm:^3.6.0, readable-stream@npm:^3.6.2":
   version: 3.6.2
   resolution: "readable-stream@npm:3.6.2"
   dependencies:
@@ -7188,21 +7167,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"readable-stream@npm:~2.3.6":
-  version: 2.3.8
-  resolution: "readable-stream@npm:2.3.8"
-  dependencies:
-    core-util-is: ~1.0.0
-    inherits: ~2.0.3
-    isarray: ~1.0.0
-    process-nextick-args: ~2.0.0
-    safe-buffer: ~5.1.1
-    string_decoder: ~1.1.1
-    util-deprecate: ~1.0.1
-  checksum: 65645467038704f0c8aaf026a72fbb588a9e2ef7a75cd57a01702ee9db1c4a1e4b03aaad36861a6a0926546a74d174149c8c207527963e0c2d3eee2f37678a42
-  languageName: node
-  linkType: hard
-
 "readdirp@npm:^3.6.0":
   version: 3.6.0
   resolution: "readdirp@npm:3.6.0"
@@ -7400,13 +7364,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"safe-buffer@npm:~5.1.0, safe-buffer@npm:~5.1.1":
-  version: 5.1.2
-  resolution: "safe-buffer@npm:5.1.2"
-  checksum: f2f1f7943ca44a594893a852894055cf619c1fbcb611237fc39e461ae751187e7baf4dc391a72125e0ac4fb2d8c5c0b3c71529622e6a58f46b960211e704903c
-  languageName: node
-  linkType: hard
-
 "safe-regex-test@npm:^1.0.0":
   version: 1.0.0
   resolution: "safe-regex-test@npm:1.0.0"
@@ -7771,15 +7728,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"string_decoder@npm:~1.1.1":
-  version: 1.1.1
-  resolution: "string_decoder@npm:1.1.1"
-  dependencies:
-    safe-buffer: ~5.1.0
-  checksum: 9ab7e56f9d60a28f2be697419917c50cac19f3e8e6c28ef26ed5f4852289fe0de5d6997d29becf59028556f2c62983790c1d9ba1e2a3cc401768ca12d5183a5b
-  languageName: node
-  linkType: hard
-
 "strip-ansi@npm:^6.0.0, strip-ansi@npm:^6.0.1":
   version: 6.0.1
   resolution: "strip-ansi@npm:6.0.1"
@@ -7930,16 +7878,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"through2@npm:^2.0.3":
-  version: 2.0.5
-  resolution: "through2@npm:2.0.5"
-  dependencies:
-    readable-stream: ~2.3.6
-    xtend: ~4.0.1
-  checksum: beb0f338aa2931e5660ec7bf3ad949e6d2e068c31f4737b9525e5201b824ac40cac6a337224856b56bd1ddd866334bbfb92a9f57cd6f66bc3f18d3d86fc0fe50
-  languageName: node
-  linkType: hard
-
 "tiny-glob@npm:0.2.9":
   version: 0.2.9
   resolution: "tiny-glob@npm:0.2.9"
@@ -8281,7 +8219,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"util-deprecate@npm:^1.0.1, util-deprecate@npm:~1.0.1":
+"util-deprecate@npm:^1.0.1":
   version: 1.0.2
   resolution: "util-deprecate@npm:1.0.2"
   checksum: 474acf1146cb2701fe3b074892217553dfcf9a031280919ba1b8d651a068c9b15d863b7303cb15bd00a862b498e6cf4ad7b4a08fb134edd5a6f7641681cb54a2
@@ -8480,13 +8418,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"xtend@npm:~4.0.1":
-  version: 4.0.2
-  resolution: "xtend@npm:4.0.2"
-  checksum: ac5dfa738b21f6e7f0dd6e65e1b3155036d68104e67e5d5d1bde74892e327d7e5636a076f625599dc394330a731861e87343ff184b0047fef1360a7ec0a5a36a
-  languageName: node
-  linkType: hard
-
 "y18n@npm:^5.0.5":
   version: 5.0.8
   resolution: "y18n@npm:5.0.8"