diff --git a/CHANGELOG.md b/CHANGELOG.md
index 46a3ff87..73285665 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,8 +13,11 @@ and this project adheres to
   `AminoTypesOptions`. This is an object with a required `prefix` field. Before
   the prefix defaulted to "cosmos" but this is almost never the right choice for
   CosmJS users that need to add Amino types manually. ([#989])
+- @cosmjs/tendermint-rpc: The property `evidence` in the interface `Block` is now
+  non-optional. ([#1011])
 
 [#989]: https://github.com/cosmos/cosmjs/issues/989
+[#1011]: https://github.com/cosmos/cosmjs/issues/1011
 
 ### Removed
 
diff --git a/packages/tendermint-rpc/src/tendermint34/adaptor/responses.ts b/packages/tendermint-rpc/src/tendermint34/adaptor/responses.ts
index b8784188..b2255d99 100644
--- a/packages/tendermint-rpc/src/tendermint34/adaptor/responses.ts
+++ b/packages/tendermint-rpc/src/tendermint34/adaptor/responses.ts
@@ -757,7 +757,7 @@ function decodeBlock(data: RpcBlock): responses.Block {
     txs: data.data.txs ? assertArray(data.data.txs).map(fromBase64) : [],
     // Lift up .evidence.evidence to just .evidence
     // See https://github.com/tendermint/tendermint/issues/7697
-    evidence: data.evidence?.evidence,
+    evidence: data.evidence?.evidence ?? [],
   };
 }
 
diff --git a/packages/tendermint-rpc/src/tendermint34/responses.ts b/packages/tendermint-rpc/src/tendermint34/responses.ts
index c7648f69..fbbb058d 100644
--- a/packages/tendermint-rpc/src/tendermint34/responses.ts
+++ b/packages/tendermint-rpc/src/tendermint34/responses.ts
@@ -227,8 +227,7 @@ export interface Block {
    */
   readonly lastCommit: Commit | null;
   readonly txs: readonly Uint8Array[];
-  // This field becomes non-optional in 0.28 (https://github.com/cosmos/cosmjs/issues/1011)
-  readonly evidence?: readonly Evidence[];
+  readonly evidence: readonly Evidence[];
 }
 
 /**