diff --git a/.release-please-manifest-submodules.json b/.release-please-manifest-submodules.json
index fa64b1a9b8f2..f5aae1bd809c 100644
--- a/.release-please-manifest-submodules.json
+++ b/.release-please-manifest-submodules.json
@@ -40,7 +40,7 @@
   "essentialcontacts": "1.2.0",
   "eventarc": "1.6.0",
   "filestore": "1.2.0",
-  "functions": "1.4.0",
+  "functions": "1.5.0",
   "gaming": "1.3.0",
   "gkebackup": "0.1.0",
   "gkeconnect": "0.3.0",
diff --git a/functions/CHANGES.md b/functions/CHANGES.md
index 7b76ba83ff3a..5bcf74879b91 100644
--- a/functions/CHANGES.md
+++ b/functions/CHANGES.md
@@ -1,5 +1,12 @@
 # Changes
 
+## [1.5.0](https://github.com/googleapis/google-cloud-go/compare/functions/v1.4.0...functions/v1.5.0) (2022-06-30)
+
+
+### Features
+
+* **functions:** start generating apiv2beta ([#6280](https://github.com/googleapis/google-cloud-go/issues/6280)) ([86c8bff](https://github.com/googleapis/google-cloud-go/commit/86c8bff34ce27b8090f567c8714c1237cbd490d1))
+
 ## [1.4.0](https://github.com/googleapis/google-cloud-go/compare/functions/v1.3.0...functions/v1.4.0) (2022-06-16)
 
 
diff --git a/functions/internal/version.go b/functions/internal/version.go
index 9fa087b74c6b..e93235c20322 100644
--- a/functions/internal/version.go
+++ b/functions/internal/version.go
@@ -15,4 +15,4 @@
 package internal
 
 // Version is the current tagged release of the library.
-const Version = "1.4.0"
+const Version = "1.5.0"