diff --git a/jlibra-examples/src/main/java/dev/jlibra/example/CreateChildVaspAccountExample.java b/jlibra-examples/src/main/java/dev/jlibra/example/CreateChildVaspAccountExample.java
index 08f1462..2b8e94f 100644
--- a/jlibra-examples/src/main/java/dev/jlibra/example/CreateChildVaspAccountExample.java
+++ b/jlibra-examples/src/main/java/dev/jlibra/example/CreateChildVaspAccountExample.java
@@ -100,7 +100,7 @@ public static void main(String[] args) throws Exception {
                         .addArguments(childAccountArgument, authKeyPrefixArgument, createAllCurrenciesArgument,
                                 initialBalanceArgument)
                         .build())
-                .chainId(ChainId.DEVNET)
+                .chainId(ChainId.TESTNET)
                 .build();
 
         SignedTransaction signedTransaction = ImmutableSignedTransaction.builder()
diff --git a/jlibra-examples/src/main/java/dev/jlibra/example/DualAttestationExample.java b/jlibra-examples/src/main/java/dev/jlibra/example/DualAttestationExample.java
index a73ae56..58281bf 100644
--- a/jlibra-examples/src/main/java/dev/jlibra/example/DualAttestationExample.java
+++ b/jlibra-examples/src/main/java/dev/jlibra/example/DualAttestationExample.java
@@ -141,7 +141,7 @@ private static void transferFromVaspToVasp(DiemClient client, KeyPair sourceKeyP
                         .typeArguments(asList(Struct.typeTagForCurrency(CURRENCY)))
                         .addArguments(addressArgument, amountArgument, metadataArgument, signatureArgument)
                         .build())
-                .chainId(ChainId.DEVNET)
+                .chainId(ChainId.TESTNET)
                 .build();
 
         Signature signature = Signature.signTransaction(transaction, sourceKeyPair.getPrivate());
@@ -184,7 +184,7 @@ private static void rotateDualAttestationInfoForVaspAccount(DiemClient client, K
                         .code(Move.rotateDualAttestationInfo())
                         .addArguments(newUrlArgument, compliancePublicKey)
                         .build())
-                .chainId(ChainId.DEVNET)
+                .chainId(ChainId.TESTNET)
                 .build();
 
         Signature signature = Signature.signTransaction(transaction, parentVaspKeyPair.getPrivate());
diff --git a/jlibra-examples/src/main/java/dev/jlibra/example/KeyRotationExample.java b/jlibra-examples/src/main/java/dev/jlibra/example/KeyRotationExample.java
index 7e63e57..f7ac8c4 100644
--- a/jlibra-examples/src/main/java/dev/jlibra/example/KeyRotationExample.java
+++ b/jlibra-examples/src/main/java/dev/jlibra/example/KeyRotationExample.java
@@ -157,7 +157,7 @@ private static void rotateAuthenticationKey(BCEdDSAPrivateKey privateKey,
                         .code(Move.rotateAuthenticationKey())
                         .addArguments(newAuthenticationKeyArgument)
                         .build())
-                .chainId(ChainId.DEVNET)
+                .chainId(ChainId.TESTNET)
                 .build();
 
         SignedTransaction signedTransaction = ImmutableSignedTransaction.builder()
diff --git a/jlibra-examples/src/main/java/dev/jlibra/example/MintExample.java b/jlibra-examples/src/main/java/dev/jlibra/example/MintExample.java
index 84672d1..5410a37 100644
--- a/jlibra-examples/src/main/java/dev/jlibra/example/MintExample.java
+++ b/jlibra-examples/src/main/java/dev/jlibra/example/MintExample.java
@@ -31,7 +31,7 @@ public class MintExample {
 
     public static void main(String[] args) {
         AuthenticationKey authenticationKey = AuthenticationKey
-                .fromHexString("8f30171675008e598af4d57c159dad7240fc2800a33e1790730244ab931630a2");
+                .fromHexString("71967329878ac3bb3b8e30a0aa389761133b573e1450c9e05c31a9041a6fcc67");
 
         Faucet faucet = Faucet.builder().build();
         faucet.mint(authenticationKey, 100L * 1_000_000L, CURRENCY);
diff --git a/jlibra-examples/src/main/java/dev/jlibra/example/TransferExample.java b/jlibra-examples/src/main/java/dev/jlibra/example/TransferExample.java
index bd6b1c8..dfba248 100644
--- a/jlibra-examples/src/main/java/dev/jlibra/example/TransferExample.java
+++ b/jlibra-examples/src/main/java/dev/jlibra/example/TransferExample.java
@@ -99,7 +99,7 @@ public static void main(String[] args) {
                         .addArguments(addressArgument, amountArgument, metadataArgument,
                                 signatureArgument)
                         .build())
-                .chainId(ChainId.DEVNET)
+                .chainId(ChainId.TESTNET)
                 .build();
 
         SignedTransaction signedTransaction = ImmutableSignedTransaction.builder()
diff --git a/jlibra-examples/src/main/java/dev/jlibra/example/TransferMultisigExample.java b/jlibra-examples/src/main/java/dev/jlibra/example/TransferMultisigExample.java
index 2d1ef9e..2de1cb1 100644
--- a/jlibra-examples/src/main/java/dev/jlibra/example/TransferMultisigExample.java
+++ b/jlibra-examples/src/main/java/dev/jlibra/example/TransferMultisigExample.java
@@ -89,7 +89,7 @@ public static void main(String[] args) throws Exception {
                         .typeArguments(asList(Struct.typeTagForCurrency(CURRENCY)))
                         .addArguments(addressArgument, amountArgument, metadataArgument, signatureArgument)
                         .build())
-                .chainId(ChainId.DEVNET)
+                .chainId(ChainId.TESTNET)
                 .build();
 
         Signature signature = Signature.newMultisignature();