diff --git a/spring-cloud-contract-spec/src/main/groovy/org/springframework/cloud/contract/spec/internal/RegexPatterns.groovy b/spring-cloud-contract-spec/src/main/groovy/org/springframework/cloud/contract/spec/internal/RegexPatterns.groovy
index 7e5380e50b..d7c6049521 100644
--- a/spring-cloud-contract-spec/src/main/groovy/org/springframework/cloud/contract/spec/internal/RegexPatterns.groovy
+++ b/spring-cloud-contract-spec/src/main/groovy/org/springframework/cloud/contract/spec/internal/RegexPatterns.groovy
@@ -186,7 +186,7 @@ class UrlHelper {
 	// Optional component. Example: "suzie:abc123@". The use of the format "user:password" is deprecated.
 	private static final String REGEX_USERINFO = "(?:\\S+(?::\\S*)?@)?"
 
-	// Examples: "fitbit.com", "22.231.113.64".
+	// Examples: "fitbit.com", "22.231.113.64", "localhost"
 	private static final String REGEX_HOST = "(?:" +
 			// @Author = http://www.regular-expressions.info/examples.html
 			// IP address
@@ -197,7 +197,7 @@ class UrlHelper {
 			// domain name
 			"(?:\\.(?:[a-z\\u00a1-\\uffff0-9]-*)*[a-z\\u00a1-\\uffff0-9]+)*" +
 			// TLD identifier must have >= 2 characters
-			"(?:\\.(?:[a-z\\u00a1-\\uffff]{2,})))"
+			"(?:\\.(?:[a-z\\u00a1-\\uffff]{2,}))|(?:localhost))"
 
 	// Example: ":8042".
 	private static final String REGEX_PORT = "(?::\\d{2,5})?"
diff --git a/spring-cloud-contract-spec/src/test/groovy/org/springframework/cloud/contract/spec/internal/RegexPatternsSpec.groovy b/spring-cloud-contract-spec/src/test/groovy/org/springframework/cloud/contract/spec/internal/RegexPatternsSpec.groovy
index 306392b0d7..71d5b13dbd 100644
--- a/spring-cloud-contract-spec/src/test/groovy/org/springframework/cloud/contract/spec/internal/RegexPatternsSpec.groovy
+++ b/spring-cloud-contract-spec/src/test/groovy/org/springframework/cloud/contract/spec/internal/RegexPatternsSpec.groovy
@@ -62,6 +62,8 @@ class RegexPatternsSpec extends Specification {
 			textToMatch                                         || shouldMatch
 			'ftp://asd.com:9090/asd/a?a=b'                      || true
 			'http://foo.com/blah_blah'                          || true
+			'ftp://localhost/api'                               || true
+			'http://localhost:8080/api'                         || true
 			'http://foo.com/blah_blah/'                         || true
 			'http://foo.com/blah_blah_(wikipedia)'              || true
 			'http://foo.com/blah_blah_(wikipedia)_(again)'      || true
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 d4f2f93a6d..18a564e18f 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
@@ -1163,8 +1163,8 @@ class JaxRsClientMethodBuilderSpec extends Specification implements WireMockStub
 			test.contains('assertThatJson(parsedJson).field("[\'aBoolean\']").matches("(true|false)")')
 			test.contains('assertThatJson(parsedJson).field("[\'alpha\']").matches("[\\\\p{L}]*")')
 			test.contains('assertThatJson(parsedJson).field("[\'hostname\']").matches("((http[s]?|ftp):/)/?([^:/\\\\s]+)(:[0-9]{1,5})?")')
-			test.contains('assertThatJson(parsedJson).field("[\'url\']").matches("^(?:(?:[A-Za-z][+-.\\\\w^_]*:/{2})?(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,})))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
-			test.contains('assertThatJson(parsedJson).field("[\'httpsUrl\']").matches("^(?:https:/{2}(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,})))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
+			test.contains('assertThatJson(parsedJson).field("[\'url\']").matches("^(?:(?:[A-Za-z][+-.\\\\w^_]*:/{2})?(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,}))|(?:localhost))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
+			test.contains('assertThatJson(parsedJson).field("[\'httpsUrl\']").matches("^(?:https:/{2}(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,}))|(?:localhost))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
 			test.contains('assertThatJson(parsedJson).field("[\'number\']").matches("-?(\\\\d*\\\\.\\\\d+|\\\\d+)")')
 			test.contains('assertThatJson(parsedJson).field("[\'positiveInt\']").matches("([1-9]\\\\d*)")')
 			test.contains('assertThatJson(parsedJson).field("[\'aDouble\']").matches("-?(\\\\d*\\\\.\\\\d+)")')
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 9f81347a02..58b1f6b4c8 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
@@ -583,14 +583,14 @@ then:
 			test.contains('assertThatJson(parsedJson).field("[\'aBoolean\']").matches("(true|false)")')
 			test.contains('assertThatJson(parsedJson).field("[\'alpha\']").matches("[\\\\p{L}]*")')
 			test.contains('assertThatJson(parsedJson).field("[\'hostname\']").matches("((http[s]?|ftp):/)/?([^:/\\\\s]+)(:[0-9]{1,5})?")')
+			test.contains('assertThatJson(parsedJson).field("[\'url\']").matches("^(?:(?:[A-Za-z][+-.\\\\w^_]*:/{2})?(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,}))|(?:localhost))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
 			test.contains('assertThatJson(parsedJson).field("[\'number\']").matches("-?(\\\\d*\\\\.\\\\d+|\\\\d+)")')
 			test.contains('assertThatJson(parsedJson).field("[\'anInteger\']").matches("-?(\\\\d+)")')
 			test.contains('assertThatJson(parsedJson).field("[\'positiveInt\']").matches("([1-9]\\\\d*)")')
 			test.contains('assertThatJson(parsedJson).field("[\'aDouble\']").matches("-?(\\\\d*\\\\.\\\\d+)")')
 			test.contains('assertThatJson(parsedJson).field("[\'email\']").matches("[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,6}")')
 			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("[\'url\']").matches("^(?:(?:[A-Za-z][+-.\\\\w^_]*:/{2})?(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,})))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
-			test.contains('assertThatJson(parsedJson).field("[\'httpsUrl\']").matches("^(?:https:/{2}(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,})))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
+			test.contains('assertThatJson(parsedJson).field("[\'httpsUrl\']").matches("^(?:https:/{2}(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,}))|(?:localhost))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
 			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])')
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 b13f3c5cf2..27468f95ff 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
@@ -2316,8 +2316,8 @@ World.'''"""
 			test.contains('assertThatJson(parsedJson).field("[\'aDouble\']").matches("-?(\\\\d*\\\\.\\\\d+)")')
 			test.contains('assertThatJson(parsedJson).field("[\'email\']").matches("[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,6}")')
 			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("[\'url\']").matches("^(?:(?:[A-Za-z][+-.\\\\w^_]*:/{2})?(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,})))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
-			test.contains('assertThatJson(parsedJson).field("[\'httpsUrl\']").matches("^(?:https:/{2}(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,})))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
+			test.contains('assertThatJson(parsedJson).field("[\'url\']").matches("^(?:(?:[A-Za-z][+-.\\\\w^_]*:/{2})?(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,}))|(?:localhost))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
+			test.contains('assertThatJson(parsedJson).field("[\'httpsUrl\']").matches("^(?:https:/{2}(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,}))|(?:localhost))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
 			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])')