diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7958870b..6b7e461a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,9 @@ and this project adheres to
   +import { TxRaw } from "cosmjs-types/cosmos/tx/v1beta1/tx"
   ```
 
+- The TypeScript build `target` and `lib` is now ES2022,
+  [analogue to CosmJS 0.35](https://github.com/cosmos/cosmjs/pull/1783).
+
 ## [0.10.1] - 2025-07-29
 
 - Add missing json-safe.\* files to package
diff --git a/tsconfig.json b/tsconfig.json
index 3bd079b1..e7fa85e9 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -5,7 +5,8 @@
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,
     "isolatedModules": true,
-    "lib": ["es2020"],
+    "lib": ["es2022"],
+    "target": "es2022",
     "module": "node20",
     "newLine": "LF",
     "noEmitOnError": true,
@@ -22,8 +23,7 @@
     "resolveJsonModule": true,
     "rootDir": "src",
     "sourceMap": true,
-    "strict": true,
-    "target": "es2020"
+    "strict": true
   },
   "include": ["src/**/*"]
 }