diff --git a/.github/workflows/ci-pr.yaml b/.github/workflows/ci-pr.yaml
index 7e2069955f..7fd7d7a428 100644
--- a/.github/workflows/ci-pr.yaml
+++ b/.github/workflows/ci-pr.yaml
@@ -64,7 +64,7 @@ jobs:
         name: Set up Go
         uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 #v6.5.0
         with:
-          go-version: '1.24.2'
+          go-version: '1.26.5'
           cache-dependency-path: go/src/github.com/harmony-one/harmony/go.sum
 
       - name: Build harmony
diff --git a/Dockerfile b/Dockerfile
index 90ce25f97b..664eb400f9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM ubuntu:22.04
 
 ARG TARGETARCH
-ARG GOLANG_VERSION="1.24.2"
+ARG GOLANG_VERSION="1.26.5"
 
 SHELL ["/bin/bash", "-c"]
 
diff --git a/README.md b/README.md
index ba69a146f5..4dc1d1fbea 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ http://api.hmny.io/
 
 ## Requirements
 
-### **Go 1.24.2**
+### **Go 1.26.5**
 ### **GMP and OpenSSL**
 
 On macOS:
@@ -276,4 +276,3 @@ See [`CONTRIBUTING`](CONTRIBUTING.md) for details.
 - Integration with WASM
 - Fast state synchronization
 - Auditable privacy asset using ZK proof
-
diff --git a/Test.Dockerfile b/Test.Dockerfile
index ad0a974f3b..7ff43e6e05 100644
--- a/Test.Dockerfile
+++ b/Test.Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.24
+FROM golang:1.26.5
 
 ARG ENV=dev
 
diff --git a/api/service/synchronize/legacysync/downloader/Proto.Dockerfile b/api/service/synchronize/legacysync/downloader/Proto.Dockerfile
index e154dc0e67..bca00e6c13 100644
--- a/api/service/synchronize/legacysync/downloader/Proto.Dockerfile
+++ b/api/service/synchronize/legacysync/downloader/Proto.Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.24.2-bullseye
+FROM golang:1.26.5-bullseye
 
 # hadolint ignore=DL3008
 RUN apt-get update > /dev/null 2>&1 && \
diff --git a/go.mod b/go.mod
index c29c096e16..18b670390c 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,8 @@
 module github.com/harmony-one/harmony
 
-go 1.24.0
+go 1.26.0
 
-toolchain go1.24.2
+toolchain go1.26.5
 
 require (
 	github.com/RoaringBitmap/roaring v1.2.3
diff --git a/rosetta/infra/Dockerfile b/rosetta/infra/Dockerfile
index 28d11a885f..76e00373ae 100644
--- a/rosetta/infra/Dockerfile
+++ b/rosetta/infra/Dockerfile
@@ -1,5 +1,5 @@
 # Build
-FROM golang:1.24.2 AS build
+FROM golang:1.26.5 AS build
 
 RUN apt update -y && \
     apt install libgmp-dev libssl-dev git -y && \
diff --git a/scripts/macos_docker/Dockerfile b/scripts/macos_docker/Dockerfile
index e8ad312bb6..e114202fff 100644
--- a/scripts/macos_docker/Dockerfile
+++ b/scripts/macos_docker/Dockerfile
@@ -1,7 +1,7 @@
 FROM ubuntu:22.04
 
 ARG TARGETARCH
-ARG GOLANG_VERSION="1.22.5"
+ARG GOLANG_VERSION="1.26.5"
 
 SHELL ["/bin/bash", "-c"]
 
@@ -61,4 +61,3 @@ RUN . ~/.bash_profile; \
 	go install github.com/stamblerre/gocode; \
 	go install golang.org/x/tools/...; \
 	go install honnef.co/go/tools/cmd/staticcheck/...
-