diff --git a/docs/04-upstream-config.adoc b/docs/04-upstream-config.adoc
index 2816c8cc5..9f9202822 100644
--- a/docs/04-upstream-config.adoc
+++ b/docs/04-upstream-config.adoc
@@ -147,6 +147,7 @@ Currently, dshackle supports next chains (should be used as chain names in confi
 - goerli (goerli-testnet)
 - rinkeby (rinkeby-testnet)
 - ropsten (ropsten-testnet)
+- ethereum-holesky
 - bitcoin (bitcoin-testnet)
 - base
 - base-goerli
diff --git a/emerald-grpc b/emerald-grpc
index f09ac8be0..1bda79548 160000
--- a/emerald-grpc
+++ b/emerald-grpc
@@ -1 +1 @@
-Subproject commit f09ac8be09093ef04aefa33651b28faad6d7bd4c
+Subproject commit 1bda79548a965629cdf4c75e709fd4d8cd821f20
diff --git a/src/main/kotlin/io/emeraldpay/dshackle/Chain.kt b/src/main/kotlin/io/emeraldpay/dshackle/Chain.kt
index 12cc4456a..2eb8c7104 100644
--- a/src/main/kotlin/io/emeraldpay/dshackle/Chain.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/Chain.kt
@@ -106,7 +106,8 @@ enum class Chain(val id: Int, val chainCode: String, val chainName: String) {
     MANTLE__TESTNET(10023, "MANTLE_TESTNET", "Mantle Testnet"),
     KLAYTN__BAOBAB(10024, "KLAYTN_BAOBAB", "Klaytn Baobab"),
     SCROLL__SEPOLIA(10025, "SCROLL_SEPOLIA", "Scroll Sepolia"),
-    BSC__TESTNET(10026, "BSC_TESTNET", "Binance Smart Chain Testnet");
+    BSC__TESTNET(10026, "BSC_TESTNET", "Binance Smart Chain Testnet"),
+    ETHEREUM__HOLESKY(10027, "ETHEREUM_HOLESKY", "Ethereum Holesky");
 
     companion object {
         fun byId(id: Int): Chain {
diff --git a/src/main/kotlin/io/emeraldpay/dshackle/Global.kt b/src/main/kotlin/io/emeraldpay/dshackle/Global.kt
index 414549d4e..246300706 100644
--- a/src/main/kotlin/io/emeraldpay/dshackle/Global.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/Global.kt
@@ -70,6 +70,7 @@ class Global {
             "bitcoin-testnet" to Chain.BITCOIN__TESTNET,
             "sepolia" to Chain.ETHEREUM__SEPOLIA,
             "sepolia-testnet" to Chain.ETHEREUM__SEPOLIA,
+            "ethereum-holesky" to Chain.ETHEREUM__HOLESKY,
             "optimism-testnet" to Chain.OPTIMISM__GOERLI,
             "arbitrum-testnet" to Chain.ARBITRUM__GOERLI,
             "arbitrum-nova" to Chain.ARBITRUM_NOVA__MAINNET,
diff --git a/src/main/kotlin/io/emeraldpay/dshackle/upstream/calls/DefaultEthereumMethods.kt b/src/main/kotlin/io/emeraldpay/dshackle/upstream/calls/DefaultEthereumMethods.kt
index 2a1473419..5e708f398 100644
--- a/src/main/kotlin/io/emeraldpay/dshackle/upstream/calls/DefaultEthereumMethods.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/upstream/calls/DefaultEthereumMethods.kt
@@ -79,6 +79,7 @@ class DefaultEthereumMethods(
             Chain.ETHEREUM__KOVAN to createHardcodedData("\"42\"", "\"0x2a\""),
             Chain.ETHEREUM__GOERLI to createHardcodedData("\"5\"", "\"0x5\""),
             Chain.ETHEREUM__SEPOLIA to createHardcodedData("\"11155111\"", "\"0xaa36a7\""),
+            Chain.ETHEREUM__HOLESKY to createHardcodedData("\"17000\"", "\"0x4268\""),
 
             Chain.ETHEREUM_CLASSIC__MAINNET to createHardcodedData("\"1\"", "\"0x3d\""),