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 c091803d45..8437a3d120 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
@@ -40,7 +40,7 @@ class RegexPatterns {
 	protected static final Pattern HOSTNAME_PATTERN = Pattern.compile('((http[s]?|ftp):/)/?([^:/\\s]+)(:[0-9]{1,5})?')
 	protected static final Pattern EMAIL = Pattern.compile('[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,4}')
 	protected static final Pattern URL = UrlHelper.URL
-	protected static final Pattern UUID = Pattern.compile('[a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12}')
+	protected static final Pattern UUID = Pattern.compile('[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}')
 	protected static final Pattern ANY_DATE = Pattern.compile('(\\d\\d\\d\\d)-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])')
 	protected static final Pattern ANY_DATE_TIME = Pattern.compile('([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])')
 	protected static final Pattern ANY_TIME = Pattern.compile('(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9])')
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 9eb48650ba..5078448b9a 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
@@ -143,12 +143,13 @@ class RegexPatternsSpec extends Specification {
 		expect:
 			shouldMatch == Pattern.compile(regexPatterns.uuid()).matcher(textToMatch).matches()
 		where:
-		textToMatch							|| shouldMatch
-			UUID.randomUUID().toString()   		|| true
-			UUID.randomUUID().toString()   		|| true
-			UUID.randomUUID().toString() + "!" 	|| false
-			'dog'       						|| false
-			'5'          						|| false
+			textToMatch                           || shouldMatch
+			UUID.randomUUID().toString()          || true
+			UUID.randomUUID().toString()          || true
+			UUID.randomUUID().toString() + "!"    || false
+			'23e4567-z89b-12z3-j456-426655440000' || false
+			'dog'                                 || false
+			'5'                                   || false
 	}
 
 	def "should generate a regex with date [#textToMatch] in YYYY-MM-DD format that should match [#shouldMatch]"() {