diff --git a/README.md b/README.md
index 5d0e59272..d1ba33ec4 100644
--- a/README.md
+++ b/README.md
@@ -54,7 +54,7 @@ data.json valid
 This repository is licensed under [CC0](LICENSE).
 
 
-[playground]: https://playground.open-rpc.org/?schemaUrl=https://raw.githubusercontent.com/ethereum/eth1.0-apis/assembled-spec/openrpc.json&uiSchema[appBar][ui:splitView]=false&uiSchema[appBar][ui:input]=false&uiSchema[appBar][ui:examplesDropdown]=false
+[playground]: https://playground.open-rpc.org/?schemaUrl=https://raw.githubusercontent.com/ethereum/execution-apis/assembled-spec/openrpc.json&uiSchema[appBar][ui:splitView]=false&uiSchema[appBar][ui:input]=false&uiSchema[appBar][ui:examplesDropdown]=false
 [openrpc]: https://open-rpc.org
 [validator]: https://open-rpc.github.io/schema-utils-js/globals.html#validateopenrpcdocument
 [spellchecker]: https://facelessuser.github.io/pyspelling/
diff --git a/src/engine/specification.md b/src/engine/specification.md
index 72475c390..9476acfed 100644
--- a/src/engine/specification.md
+++ b/src/engine/specification.md
@@ -360,4 +360,4 @@ The payload build process is specified as follows:
 
 6. Considering the absence of the `TERMINAL_BLOCK_NUMBER` setting, Consensus Layer client software **MAY** use `0` value for the `terminalBlockNumber` field in the input parameters of this call.
 
-[json-rpc-spec]: https://playground.open-rpc.org/?schemaUrl=https://raw.githubusercontent.com/ethereum/eth1.0-apis/assembled-spec/openrpc.json&uiSchema[appBar][ui:splitView]=false&uiSchema[appBar][ui:input]=false&uiSchema[appBar][ui:examplesDropdown]=false
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+[json-rpc-spec]: https://playground.open-rpc.org/?schemaUrl=https://raw.githubusercontent.com/ethereum/execution-apis/assembled-spec/openrpc.json&uiSchema[appBar][ui:splitView]=false&uiSchema[appBar][ui:input]=false&uiSchema[appBar][ui:examplesDropdown]=false
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