diff --git a/packages/cosmwasm/src/cw1subkeycosmwasmclient.ts b/packages/cosmwasm/src/cw1subkeycosmwasmclient.ts
index a9a45297..8f55228b 100644
--- a/packages/cosmwasm/src/cw1subkeycosmwasmclient.ts
+++ b/packages/cosmwasm/src/cw1subkeycosmwasmclient.ts
@@ -2,8 +2,8 @@
 import { Coin } from "@cosmjs/launchpad";
 
 import { Cw1CosmWasmClient } from "./cw1cosmwasmclient";
+import { Expiration } from "./interfaces";
 import { ExecuteResult } from "./signingcosmwasmclient";
-import { Expiration } from "./types";
 
 export interface AllowanceResult {
   readonly balance: readonly Coin[];
diff --git a/packages/cosmwasm/src/cw3cosmwasmclient.ts b/packages/cosmwasm/src/cw3cosmwasmclient.ts
index 15f74941..6603bc7c 100644
--- a/packages/cosmwasm/src/cw3cosmwasmclient.ts
+++ b/packages/cosmwasm/src/cw3cosmwasmclient.ts
@@ -3,8 +3,8 @@ import { BroadcastMode, GasLimits, GasPrice, OfflineSigner } from "@cosmjs/launc
 
 import { CosmosMsg } from "./cosmosmsg";
 import { Account } from "./cosmwasmclient";
+import { Expiration } from "./interfaces";
 import { CosmWasmFeeTable, ExecuteResult, SigningCosmWasmClient } from "./signingcosmwasmclient";
-import { Expiration } from "./types";
 
 export enum Vote {
   Yes = "yes",
diff --git a/packages/cosmwasm/src/index.ts b/packages/cosmwasm/src/index.ts
index a9151c7d..692d9bbc 100644
--- a/packages/cosmwasm/src/index.ts
+++ b/packages/cosmwasm/src/index.ts
@@ -1,4 +1,6 @@
+export { Expiration } from "./interfaces";
 export { setupWasmExtension, WasmExtension } from "./lcdapi/wasm";
+
 export { BankMsg, CosmosMsg, CustomMsg, StakingMsg, WasmMsg } from "./cosmosmsg";
 export {
   Account,
@@ -53,4 +55,3 @@ export {
   MsgUpdateAdmin,
   MsgStoreCode,
 } from "./msgs";
-export { Expiration } from "./types";
diff --git a/packages/cosmwasm/src/interfaces/cw0.ts b/packages/cosmwasm/src/interfaces/cw0.ts
new file mode 100644
index 00000000..17d098dd
--- /dev/null
+++ b/packages/cosmwasm/src/interfaces/cw0.ts
@@ -0,0 +1,15 @@
+/* eslint-disable @typescript-eslint/naming-convention */
+
+/**
+ * @see https://github.com/CosmWasm/cosmwasm-plus/blob/v0.3.2/packages/cw0/src/expiration.rs#L14
+ */
+export type Expiration =
+  | {
+      readonly at_height: number;
+    }
+  | {
+      readonly at_time: number;
+    }
+  | {
+      readonly never: Record<any, never>;
+    };
diff --git a/packages/cosmwasm/src/interfaces/index.ts b/packages/cosmwasm/src/interfaces/index.ts
new file mode 100644
index 00000000..b91ff756
--- /dev/null
+++ b/packages/cosmwasm/src/interfaces/index.ts
@@ -0,0 +1 @@
+export { Expiration } from "./cw0";
diff --git a/packages/cosmwasm/src/types.ts b/packages/cosmwasm/src/types.ts
index 0d0ba0ba..bba7fc95 100644
--- a/packages/cosmwasm/src/types.ts
+++ b/packages/cosmwasm/src/types.ts
@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/naming-convention */
 import { fromBase64, fromHex } from "@cosmjs/encoding";
 
 export interface WasmData {
@@ -26,14 +25,3 @@ export function parseWasmData({ key, val }: WasmData): Model {
  * This doen't privide any type safety over `any` but expresses intent in the code.
  */
 export type JsonObject = any;
-
-export type Expiration =
-  | {
-      readonly at_height: number;
-    }
-  | {
-      readonly at_time: number;
-    }
-  | {
-      readonly never: Record<any, never>;
-    };
diff --git a/packages/cosmwasm/types/cw1subkeycosmwasmclient.d.ts b/packages/cosmwasm/types/cw1subkeycosmwasmclient.d.ts
index 0e7c1ef5..015829fd 100644
--- a/packages/cosmwasm/types/cw1subkeycosmwasmclient.d.ts
+++ b/packages/cosmwasm/types/cw1subkeycosmwasmclient.d.ts
@@ -1,7 +1,7 @@
 import { Coin } from "@cosmjs/launchpad";
 import { Cw1CosmWasmClient } from "./cw1cosmwasmclient";
+import { Expiration } from "./interfaces";
 import { ExecuteResult } from "./signingcosmwasmclient";
-import { Expiration } from "./types";
 export interface AllowanceResult {
   readonly balance: readonly Coin[];
   readonly expires: Expiration;
diff --git a/packages/cosmwasm/types/cw3cosmwasmclient.d.ts b/packages/cosmwasm/types/cw3cosmwasmclient.d.ts
index fdc96478..21b63d46 100644
--- a/packages/cosmwasm/types/cw3cosmwasmclient.d.ts
+++ b/packages/cosmwasm/types/cw3cosmwasmclient.d.ts
@@ -1,8 +1,8 @@
 import { BroadcastMode, GasLimits, GasPrice, OfflineSigner } from "@cosmjs/launchpad";
 import { CosmosMsg } from "./cosmosmsg";
 import { Account } from "./cosmwasmclient";
+import { Expiration } from "./interfaces";
 import { CosmWasmFeeTable, ExecuteResult, SigningCosmWasmClient } from "./signingcosmwasmclient";
-import { Expiration } from "./types";
 export declare enum Vote {
   Yes = "yes",
   No = "no",
diff --git a/packages/cosmwasm/types/index.d.ts b/packages/cosmwasm/types/index.d.ts
index a9151c7d..071e9351 100644
--- a/packages/cosmwasm/types/index.d.ts
+++ b/packages/cosmwasm/types/index.d.ts
@@ -1,3 +1,4 @@
+export { Expiration } from "./interfaces";
 export { setupWasmExtension, WasmExtension } from "./lcdapi/wasm";
 export { BankMsg, CosmosMsg, CustomMsg, StakingMsg, WasmMsg } from "./cosmosmsg";
 export {
@@ -53,4 +54,3 @@ export {
   MsgUpdateAdmin,
   MsgStoreCode,
 } from "./msgs";
-export { Expiration } from "./types";
diff --git a/packages/cosmwasm/types/interfaces/cw0.d.ts b/packages/cosmwasm/types/interfaces/cw0.d.ts
new file mode 100644
index 00000000..1a9bae43
--- /dev/null
+++ b/packages/cosmwasm/types/interfaces/cw0.d.ts
@@ -0,0 +1,13 @@
+/**
+ * @see https://github.com/CosmWasm/cosmwasm-plus/blob/v0.3.2/packages/cw0/src/expiration.rs#L14
+ */
+export declare type Expiration =
+  | {
+      readonly at_height: number;
+    }
+  | {
+      readonly at_time: number;
+    }
+  | {
+      readonly never: Record<any, never>;
+    };
diff --git a/packages/cosmwasm/types/interfaces/index.d.ts b/packages/cosmwasm/types/interfaces/index.d.ts
new file mode 100644
index 00000000..b91ff756
--- /dev/null
+++ b/packages/cosmwasm/types/interfaces/index.d.ts
@@ -0,0 +1 @@
+export { Expiration } from "./cw0";
diff --git a/packages/cosmwasm/types/types.d.ts b/packages/cosmwasm/types/types.d.ts
index 33928389..45d870c7 100644
--- a/packages/cosmwasm/types/types.d.ts
+++ b/packages/cosmwasm/types/types.d.ts
@@ -12,13 +12,3 @@ export declare function parseWasmData({ key, val }: WasmData): Model;
  * This doen't privide any type safety over `any` but expresses intent in the code.
  */
 export declare type JsonObject = any;
-export declare type Expiration =
-  | {
-      readonly at_height: number;
-    }
-  | {
-      readonly at_time: number;
-    }
-  | {
-      readonly never: Record<any, never>;
-    };