chore(main): release 2.5.1 (#219)

diff --git a/v2/.release-please-manifest.json b/v2/.release-please-manifest.json
index ad982de..129685e 100644
--- a/v2/.release-please-manifest.json
+++ b/v2/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    "v2": "2.5.0"
+    "v2": "2.5.1"
 }
diff --git a/v2/CHANGES.md b/v2/CHANGES.md
index ebcd53a..2a05e44 100644
--- a/v2/CHANGES.md
+++ b/v2/CHANGES.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.5.1](https://github.com/googleapis/gax-go/compare/v2.5.0...v2.5.1) (2022-08-04)
+
+
+### Bug Fixes
+
+* **v2:** resolve bad genproto pseudoversion in go.mod ([#218](https://github.com/googleapis/gax-go/issues/218)) ([1379b27](https://github.com/googleapis/gax-go/commit/1379b27e9846d959f7e1163b9ef298b3c92c8d23))
+
 ## [2.5.0](https://github.com/googleapis/gax-go/compare/v2.4.0...v2.5.0) (2022-08-04)
 
 
diff --git a/v2/internal/version.go b/v2/internal/version.go
index c256789..a46ae25 100644
--- a/v2/internal/version.go
+++ b/v2/internal/version.go
@@ -30,4 +30,4 @@
 package internal
 
 // Version is the current tagged release of the library.
-const Version = "2.5.0"
+const Version = "2.5.1"