diff --git a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/JaxRsClientMethodBuilderSpec.groovy b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/JaxRsClientMethodBuilderSpec.groovy
index cbdb11c372..6151f85bde 100644
--- a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/JaxRsClientMethodBuilderSpec.groovy
+++ b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/JaxRsClientMethodBuilderSpec.groovy
@@ -1063,7 +1063,7 @@ class JaxRsClientMethodBuilderSpec extends Specification implements WireMockStub
 			test.contains('assertThatJson(parsedJson).field("[\'number\']").matches("-?\\\\d*(\\\\.\\\\d+)?")')
 			test.contains('assertThatJson(parsedJson).field("[\'email\']").matches("[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,4}")')
 			test.contains('assertThatJson(parsedJson).field("[\'ip\']").matches("([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])")')
-			test.contains('assertThatJson(parsedJson).field("[\'uuid\']").matches("[a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12}")')
+			test.contains('assertThatJson(parsedJson).field("[\'uuid\']").matches("[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}")')
 			test.contains('assertThatJson(parsedJson).field("[\'date\']").matches("(\\\\d\\\\d\\\\d\\\\d)-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])")')
 			test.contains('assertThatJson(parsedJson).field("[\'dateTime\']").matches("([0-9]{4})-(1[0-2]|0[1-9])-(3[01]|0[1-9]|[12][0-9])T(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9])")')
 			test.contains('assertThatJson(parsedJson).field("[\'time\']").matches("(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9])")')
diff --git a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcMethodBodyBuilderSpec.groovy b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcMethodBodyBuilderSpec.groovy
index 219c2408c8..35ae8c3068 100644
--- a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcMethodBodyBuilderSpec.groovy
+++ b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcMethodBodyBuilderSpec.groovy
@@ -1944,7 +1944,7 @@ World.'''"""
 			test.contains('assertThatJson(parsedJson).field("[\'number\']").matches("-?\\\\d*(\\\\.\\\\d+)?")')
 			test.contains('assertThatJson(parsedJson).field("[\'email\']").matches("[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,4}")')
 			test.contains('assertThatJson(parsedJson).field("[\'ip\']").matches("([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])")')
-			test.contains('assertThatJson(parsedJson).field("[\'uuid\']").matches("[a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12}")')
+			test.contains('assertThatJson(parsedJson).field("[\'uuid\']").matches("[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}")')
 			test.contains('assertThatJson(parsedJson).field("[\'date\']").matches("(\\\\d\\\\d\\\\d\\\\d)-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])')
 			test.contains('assertThatJson(parsedJson).field("[\'dateTime\']").matches("([0-9]{4})-(1[0-2]|0[1-9])-(3[01]|0[1-9]|[12][0-9])T(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9])')
 			test.contains('assertThatJson(parsedJson).field("[\'time\']").matches("(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9])")')