diff --git a/model/src/test/java/de/cotto/lndmanagej/model/PubkeyTest.java b/model/src/test/java/de/cotto/lndmanagej/model/PubkeyTest.java
index 95008f86..50be423f 100644
--- a/model/src/test/java/de/cotto/lndmanagej/model/PubkeyTest.java
+++ b/model/src/test/java/de/cotto/lndmanagej/model/PubkeyTest.java
@@ -9,7 +9,7 @@ import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException
 
 class PubkeyTest {
     private static final String VALID_PUBKEY_STRING =
-            "027abc123abc123abc123abc123123abc123abc123abc123abc123abc123abc123";
+            "027abc123abc123abc123abc123123abc123abc123abc123abc123abc123abc121";
 
     @Test
     void empty() {
@@ -46,7 +46,7 @@ class PubkeyTest {
 
     @Test
     void testToString_from_uppercase() {
-        assertThat(Pubkey.create("027ABC123ABC123ABC123ABC123123ABC123ABC123ABC123ABC123ABC123ABC123"))
+        assertThat(Pubkey.create("027ABC123ABC123ABC123ABC123123ABC123ABC123ABC123ABC123ABC123ABC121"))
                 .hasToString(VALID_PUBKEY_STRING);
     }
 
@@ -73,7 +73,7 @@ class PubkeyTest {
 
     @Test
     void testEquals_from_uppercase() {
-        assertThat(Pubkey.create("027ABC123ABC123ABC123ABC123123ABC123ABC123ABC123ABC123ABC123ABC123"))
+        assertThat(Pubkey.create("027ABC123ABC123ABC123ABC123123ABC123ABC123ABC123ABC123ABC123ABC121"))
                 .isEqualTo(PUBKEY);
     }
 
diff --git a/model/src/testFixtures/java/de/cotto/lndmanagej/model/PubkeyFixtures.java b/model/src/testFixtures/java/de/cotto/lndmanagej/model/PubkeyFixtures.java
index 49dcdef4..212dfd85 100644
--- a/model/src/testFixtures/java/de/cotto/lndmanagej/model/PubkeyFixtures.java
+++ b/model/src/testFixtures/java/de/cotto/lndmanagej/model/PubkeyFixtures.java
@@ -2,9 +2,11 @@ package de.cotto.lndmanagej.model;
 
 public class PubkeyFixtures {
     public static final Pubkey PUBKEY =
-            Pubkey.create("027abc123abc123abc123abc123123abc123abc123abc123abc123abc123abc123");
+            Pubkey.create("027abc123abc123abc123abc123123abc123abc123abc123abc123abc123abc121");
     public static final Pubkey PUBKEY_2 =
-            Pubkey.create("03fff0000000000000000000000000000000000000000000000000000000000000");
+            Pubkey.create("03fff0000000000000000000000000000000000000000000000000000000000002");
     public static final Pubkey PUBKEY_3 =
-            Pubkey.create("03fff1111111111111111111111111111111111111111111111111111111111111");
+            Pubkey.create("03fff1111111111111111111111111111111111111111111111111111111111113");
+    public static final Pubkey PUBKEY_4 =
+            Pubkey.create("000000000000000000000000000000000000000000000000000000000000000004");
 }