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