diff --git a/Dockerfile b/Dockerfile
index 3af630766..3a35da441 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@
 # container for this image, the desired binary must be specified (either
 # /usr/bin/core-service or /usr/bin/db-manager).
 
-FROM golang:1.25-alpine AS build
+FROM golang:1.26-alpine AS build
 
 ARG EXTRA_GO_INSTALL_FLAGS=""
 ENV EXTRA_GO_INSTALL_FLAGS=${EXTRA_GO_INSTALL_FLAGS}
diff --git a/Makefile b/Makefile
index f44144fd9..dcb026132 100644
--- a/Makefile
+++ b/Makefile
@@ -96,7 +96,7 @@ shell-lint:
 
 .PHONY: go-lint
 go-lint:
-	echo "===== Checking Go lint (except for *.gen.go files) =====" && docker run --rm -v $(CURDIR):/dss -w /dss golangci/golangci-lint:v2.7.2 golangci-lint run -v
+	echo "===== Checking Go lint (except for *.gen.go files) =====" && docker run --rm -v $(CURDIR):/dss -w /dss golangci/golangci-lint:v2.12.2 golangci-lint run -v
 
 .PHONY: terraform-lint
 terraform-lint:
diff --git a/build/test-certs/Dockerfile b/build/test-certs/Dockerfile
index 288541662..45d742285 100644
--- a/build/test-certs/Dockerfile
+++ b/build/test-certs/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.25-alpine
+FROM golang:1.26-alpine
 
 WORKDIR /go/src/app
 
diff --git a/cmds/dummy-oauth/Dockerfile b/cmds/dummy-oauth/Dockerfile
index c7f527478..d7b1c81af 100644
--- a/cmds/dummy-oauth/Dockerfile
+++ b/cmds/dummy-oauth/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.25-alpine AS build
+FROM golang:1.26-alpine AS build
 RUN apk add git bash make
 RUN mkdir /app
 WORKDIR /app
diff --git a/go.mod b/go.mod
index ec2c4897b..cd39dc432 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/interuss/dss
 
-go 1.25.5
+go 1.26.2
 
 require (
 	cloud.google.com/go/profiler v0.4.0
diff --git a/interfaces/openapi-to-go-server/example/Dockerfile b/interfaces/openapi-to-go-server/example/Dockerfile
index 057ed1eaf..c1966580b 100644
--- a/interfaces/openapi-to-go-server/example/Dockerfile
+++ b/interfaces/openapi-to-go-server/example/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.25-alpine
+FROM golang:1.26-alpine
 
 WORKDIR /go/src/server_demo
 COPY . .