diff --git a/tck/src/main/java/ee/jakarta/tck/data/framework/read/only/CountryPopulator.java b/tck/src/main/java/ee/jakarta/tck/data/framework/read/only/CountryPopulator.java
index 41424dd35..f4026c87f 100644
--- a/tck/src/main/java/ee/jakarta/tck/data/framework/read/only/CountryPopulator.java
+++ b/tck/src/main/java/ee/jakarta/tck/data/framework/read/only/CountryPopulator.java
@@ -565,7 +565,7 @@ public void populationLogic(Countries countries) {
                                null,
                                null,
                                true,
-                               City.of("Reykjavík", 133262)),
+                               City.of("Reykjavik", 133262)),
                     Country.of("IN", "India", ASIA,
                                2973193L, 1419316933L, 13173000000000L, 6125445000000L,
                                null,
diff --git a/tck/src/main/java/ee/jakarta/tck/data/standalone/entity/ConstraintTests.java b/tck/src/main/java/ee/jakarta/tck/data/standalone/entity/ConstraintTests.java
index 4ec456e3a..fc654feb0 100644
--- a/tck/src/main/java/ee/jakarta/tck/data/standalone/entity/ConstraintTests.java
+++ b/tck/src/main/java/ee/jakarta/tck/data/standalone/entity/ConstraintTests.java
@@ -827,7 +827,7 @@ public void testLikeConstraintSubstring() {
                             .sorted()
                             .collect(Collectors.toList());
             assertEquals(List.of("Niamey",
-                                 "Reykjavík"),
+                                 "Reykjavik"),
                          found);
         } catch (UnsupportedOperationException x) {
             if (type.capableOfConstraintsOnNonIdAttributes() &&