diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 1c02595c..22a5e7db 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -9,11 +9,11 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
-      - uses: bufbuild/buf-setup-action@v0.3.1
+      - uses: bufbuild/buf-setup-action@v1.5.0
         with:
-          version: 0.54.1
+          version: 1.5.0
       - uses: bufbuild/buf-lint-action@v1
         continue-on-error: true
-      - uses: bufbuild/buf-breaking-action@v0.4.0
+      - uses: bufbuild/buf-breaking-action@v1
         with:
           against: "https://github.com/$GITHUB_REPOSITORY.git#branch=main"
diff --git a/README.md b/README.md
index 60c24336..504b8641 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ Proton has flat structure where proto files are put under /odpf/proton/\<applica
 
 ### Generating go code using buf
 
-***This guide is last tried on buf version `1.0.0-rc4`.***
+***This guide is last tried on buf version `1.5.0`.***
 
 Add this `buf.gen.yaml` at the root folder.
 
diff --git a/buf.lock b/buf.lock
index 57eef72b..921b05da 100644
--- a/buf.lock
+++ b/buf.lock
@@ -4,21 +4,12 @@ deps:
   - remote: buf.build
     owner: envoyproxy
     repository: protoc-gen-validate
-    branch: main
-    commit: bb405eae115246f0b5ccf8997136e3d8
-    digest: b1-BJUoAjBMVXaIMUNFJ5kdGr-be0QDwhDSTEDQpoxXzys=
-    create_time: 2021-08-20T15:05:15.02577Z
+    commit: dc09a417d27241f7b069feae2cd74a0e
   - remote: buf.build
     owner: googleapis
     repository: googleapis
-    branch: main
-    commit: e16155da3b4a49e48bd18cdcb029004d
-    digest: b1--CthFBW4QSXRq35NiPd7Uu9WN2xWeV9_GVRe5mbTVuI=
-    create_time: 2021-09-30T15:08:49.529359Z
+    commit: 1068d85d09894f7587a3236f489c0d80
   - remote: buf.build
     owner: grpc-ecosystem
     repository: grpc-gateway
-    branch: main
-    commit: de24a84aed3d4d84806740946b55d947
-    digest: b1-Q-mEW3P3NR5UL8gm0pr3YWFSo5DAtrBqqgvkwH2WFWw=
-    create_time: 2021-09-08T00:32:28.231758Z
+    commit: 00116f302b12478b85deb33b734e026c