diff --git a/fixtures/php_all_modules/.bp-config/options.json b/fixtures/php_all_modules/.bp-config/options.json
index 17adc6e76..fc66a8ee2 100644
--- a/fixtures/php_all_modules/.bp-config/options.json
+++ b/fixtures/php_all_modules/.bp-config/options.json
@@ -25,7 +25,6 @@
     "mailparse",
     "maxminddb",
     "mbstring",
-    "mcrypt",
     "memcached",
     "mongodb",
     "msgpack",
@@ -63,7 +62,6 @@
     "tidy",
     "xsl",
     "yaml",
-    "yaf",
     "zip",
     "zlib",
     "phalcon"
diff --git a/fixtures/php_all_modules_composer/composer.json b/fixtures/php_all_modules_composer/composer.json
index 4ad23ec42..2ca67aba0 100644
--- a/fixtures/php_all_modules_composer/composer.json
+++ b/fixtures/php_all_modules_composer/composer.json
@@ -59,7 +59,6 @@
         "ext-yaml": "*",
         "ext-zip": "*",
         "ext-zlib": "*",
-        "ext-yaf" : "*",
         "ext-phalcon": "*"
     }
 }
diff --git a/manifest.yml b/manifest.yml
index 3a37e8d2f..ead7da657 100644
--- a/manifest.yml
+++ b/manifest.yml
@@ -2,7 +2,7 @@
 language: php
 default_versions:
 - name: php
-  version: 8.1.32
+  version: 8.3.x
 - name: httpd
   version: 2.4.66
 - name: nginx
diff --git a/src/php/integration/modules_test.go b/src/php/integration/modules_test.go
index b61e41650..157b76adf 100644
--- a/src/php/integration/modules_test.go
+++ b/src/php/integration/modules_test.go
@@ -4,13 +4,13 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 
 	"github.com/cloudfoundry/switchblade"
-	"github.com/sclevine/spec"
-
 	. "github.com/cloudfoundry/switchblade/matchers"
 	. "github.com/onsi/gomega"
+	"github.com/sclevine/spec"
 	"gopkg.in/yaml.v2"
 )
 
@@ -69,13 +69,22 @@ func testModules(platform switchblade.Platform, fixtures string) func(*testing.T
 				}
 			}
 
+			// Resolve wildcard default (e.g. "8.3.x") to the highest matching
+			// exact version present in the manifest dependencies.
+			prefix := strings.TrimSuffix(phpVersion, "x")
+			var resolvedVersion string
 			var modules []SubDependency
 			for _, d := range manifest.Dependencies {
-				if d.Name == "php" && d.Version == phpVersion {
-					modules = d.Modules
-					break
+				if d.Name == "php" && strings.HasPrefix(d.Version, prefix) {
+					if resolvedVersion == "" || d.Version > resolvedVersion {
+						resolvedVersion = d.Version
+						modules = d.Modules
+					}
 				}
 			}
+			if resolvedVersion != "" {
+				phpVersion = resolvedVersion
+			}
 
 			Eventually(deployment).Should(Serve(
 				ContainSubstring(fmt.Sprintf("PHP %s", phpVersion)),