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 a5ea3f2d8f..1b3196551d 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
@@ -1280,7 +1280,7 @@ public class FooTest {
 			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])")')
-			test.contains('assertThatJson(parsedJson).field("[\'iso8601WithOffset\']").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])(\\\\.\\\\d{3})?(Z|[+-][01]\\\\d:[0-5]\\\\d)")')
+			test.contains('assertThatJson(parsedJson).field("[\'iso8601WithOffset\']").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])(\\\\.\\\\d{1,6})?(Z|[+-][01]\\\\d:[0-5]\\\\d)")')
 			test.contains('assertThatJson(parsedJson).field("[\'nonBlankString\']").matches("^\\\\s*\\\\S[\\\\S\\\\s]*")')
 			test.contains('assertThatJson(parsedJson).field("[\'nonEmptyString\']").matches("[\\\\S\\\\s]+")')
 			test.contains('assertThatJson(parsedJson).field("[\'anyOf\']").matches("^foo' + endOfLineRegexSymbol + '|^bar' + endOfLineRegexSymbol + '")')
diff --git a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MessagingMethodBodyBuilderSpec.groovy b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MessagingMethodBodyBuilderSpec.groovy
index 037cc34f2d..649142096b 100644
--- a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MessagingMethodBodyBuilderSpec.groovy
+++ b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MessagingMethodBodyBuilderSpec.groovy
@@ -921,7 +921,7 @@ public class FooTest {
 			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])")')
-			test.contains('assertThatJson(parsedJson).field("[\'iso8601WithOffset\']").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])(\\\\.\\\\d{3})?(Z|[+-][01]\\\\d:[0-5]\\\\d)")')
+			test.contains('assertThatJson(parsedJson).field("[\'iso8601WithOffset\']").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])(\\\\.\\\\d{1,6})?(Z|[+-][01]\\\\d:[0-5]\\\\d)")')
 			test.contains('assertThatJson(parsedJson).field("[\'nonBlankString\']").matches("^\\\\s*\\\\S[\\\\S\\\\s]*")')
 			test.contains('assertThatJson(parsedJson).field("[\'nonEmptyString\']").matches("[\\\\S\\\\s]+")')
 			test.contains('assertThatJson(parsedJson).field("[\'anyOf\']").matches("^foo' + endOfLineRegExSymbol + '|^bar' + endOfLineRegExSymbol + '")')
diff --git a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/SpringTestMethodBodyBuildersSpec.groovy b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/SpringTestMethodBodyBuildersSpec.groovy
index 9354e140a8..bf77071910 100644
--- a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/SpringTestMethodBodyBuildersSpec.groovy
+++ b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/SpringTestMethodBodyBuildersSpec.groovy
@@ -2352,7 +2352,7 @@ World.'''"""
 			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])")')
-			test.contains('assertThatJson(parsedJson).field("[\'iso8601WithOffset\']").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])(\\\\.\\\\d{3})?(Z|[+-][01]\\\\d:[0-5]\\\\d)")')
+			test.contains('assertThatJson(parsedJson).field("[\'iso8601WithOffset\']").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])(\\\\.\\\\d{1,6})?(Z|[+-][01]\\\\d:[0-5]\\\\d)")')
 			test.contains('assertThatJson(parsedJson).field("[\'nonBlankString\']").matches("^\\\\s*\\\\S[\\\\S\\\\s]*")')
 			test.contains('assertThatJson(parsedJson).field("[\'nonEmptyString\']").matches("[\\\\S\\\\s]+")')
 			test.contains('assertThatJson(parsedJson).field("[\'anyOf\']").matches("^foo' + endOfLineRegExSymbol + '|^bar' + endOfLineRegExSymbol + '")')