diff --git a/package-lock.json b/package-lock.json
index c266f6e..3d8014d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -35,7 +35,7 @@
         "node": ">=18.17.1"
       },
       "peerDependencies": {
-        "@mapeo/core": "9.0.0-alpha.18"
+        "@mapeo/core": "9.0.0-alpha.20"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
@@ -619,10 +619,9 @@
       }
     },
     "node_modules/@mapeo/core": {
-      "version": "9.0.0-alpha.18",
-      "resolved": "https://registry.npmjs.org/@mapeo/core/-/core-9.0.0-alpha.18.tgz",
-      "integrity": "sha512-aQVlREzqlHXu39jKGJ8mmMsaZTkZjGTaVp9B1ruCi7j1ZUghKEoO1nyWPyoIK9DKdklQNuSV+m671yOeInulwQ==",
-      "license": "MIT",
+      "version": "9.0.0-alpha.20",
+      "resolved": "https://registry.npmjs.org/@mapeo/core/-/core-9.0.0-alpha.20.tgz",
+      "integrity": "sha512-HEt7dv/EoGV29LU2gTTscV7bPPlm8tWBeHtkiSyj1S8inK/9u5lq+42SXx5zdKrnRYVzmFcaI77y9tEwsN6Ujw==",
       "peer": true,
       "dependencies": {
         "@digidem/types": "^2.3.0",
@@ -632,7 +631,7 @@
         "@fastify/type-provider-typebox": "^4.0.0",
         "@hyperswarm/secret-stream": "^6.1.2",
         "@mapeo/crypto": "1.0.0-alpha.10",
-        "@mapeo/schema": "^3.0.0-next.22",
+        "@mapeo/schema": "^3.0.0-next.23",
         "@mapeo/sqlite-indexer": "1.0.0-alpha.9",
         "@sinclair/typebox": "^0.29.6",
         "b4a": "^1.6.3",
@@ -734,14 +733,14 @@
       }
     },
     "node_modules/@mapeo/schema": {
-      "version": "3.0.0-next.22",
-      "resolved": "https://registry.npmjs.org/@mapeo/schema/-/schema-3.0.0-next.22.tgz",
-      "integrity": "sha512-LGgazGZoP8Gq2SaLvWf2rf+njtC2qcpliWl7BctOXTO6pZ9oNX9QSBFOwk/0PjU2fg4iHqKal5UaEIhbIBmWgA==",
+      "version": "3.0.0-next.23",
+      "resolved": "https://registry.npmjs.org/@mapeo/schema/-/schema-3.0.0-next.23.tgz",
+      "integrity": "sha512-NtI32BBwVahOC12ETrsBhNOjBtgF/6p/AatouaivBTe3cXudEGXm3lOgExDytHzKGJDKP4ALNOWLUbEKKlsTWQ==",
       "peer": true,
       "dependencies": {
         "compact-encoding": "^2.12.0",
         "protobufjs": "^7.2.5",
-        "type-fest": "^4.1.0"
+        "type-fest": "^4.26.0"
       }
     },
     "node_modules/@mapeo/sqlite-indexer": {
@@ -7750,9 +7749,9 @@
       }
     },
     "node_modules/type-fest": {
-      "version": "4.20.1",
-      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-4.20.1.tgz",
-      "integrity": "sha512-R6wDsVsoS9xYOpy8vgeBlqpdOyzJ12HNfQhC/aAKWM3YoCV9TtunJzh/QpkMgeDhkoynDcw5f1y+qF9yc/HHyg==",
+      "version": "4.26.0",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-4.26.0.tgz",
+      "integrity": "sha512-OduNjVJsFbifKb57UqZ2EMP1i4u64Xwow3NYXUtBbD4vIwJdQd4+xl8YDou1dlm4DVrtwT/7Ky8z8WyCULVfxw==",
       "peer": true,
       "engines": {
         "node": ">=16"
diff --git a/package.json b/package.json
index 83f882d..2cfa60a 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "rpc-reflector": "^1.3.11"
   },
   "peerDependencies": {
-    "@mapeo/core": "9.0.0-alpha.18"
+    "@mapeo/core": "9.0.0-alpha.20"
   },
   "devDependencies": {
     "@digidem/types": "^2.1.0",