diff --git a/.github/actions/setup-go/action.yml b/.github/actions/setup-go/action.yml
index 3f7c0bd95..e59519322 100644
--- a/.github/actions/setup-go/action.yml
+++ b/.github/actions/setup-go/action.yml
@@ -13,7 +13,7 @@ runs:
       uses: actions/setup-go@7a3fe6cf4cb3a834922a1244abfce67bcef6a0c5 # v6.2.0
       with:
         check-latest: true
-        go-version: "1.25"
+        go-version: "1.26"
 
     - name: Verify setup
       shell: bash
diff --git a/.github/workflows/golangci-lint.yml b/.github/workflows/golangci-lint.yml
index 3194f48f2..182f2f914 100644
--- a/.github/workflows/golangci-lint.yml
+++ b/.github/workflows/golangci-lint.yml
@@ -19,4 +19,4 @@ jobs:
       - name: golangci-lint
         uses: golangci/golangci-lint-action@1e7e51e771db61008b38414a730f564565cf7c20 # v9.2.0
         with:
-          version: v2.6.2
+          version: v2.9.0
diff --git a/app/errors/errors.go b/app/errors/errors.go
index 470be3128..a69838dfe 100644
--- a/app/errors/errors.go
+++ b/app/errors/errors.go
@@ -2,6 +2,7 @@
 
 // Package errors provides errors with structured fields and stack traces.
 // It is a drop-in replacement for stdlib errors and should be used as such throughout the app.
+// nolint:revive
 package errors
 
 import (
diff --git a/app/errors/go113.go b/app/errors/go113.go
index 4b3fe526a..10e03ccae 100644
--- a/app/errors/go113.go
+++ b/app/errors/go113.go
@@ -1,6 +1,6 @@
 // Copyright © 2022-2026 Obol Labs Inc. Licensed under the terms of a Business Source License 1.1
 
-//nolint:wrapcheck
+//nolint:wrapcheck,revive
 package errors
 
 import (
diff --git a/core/consensus/metrics/metrics.go b/core/consensus/metrics/metrics.go
index eb2997f5d..7ee78c9a6 100644
--- a/core/consensus/metrics/metrics.go
+++ b/core/consensus/metrics/metrics.go
@@ -1,5 +1,6 @@
 // Copyright © 2022-2026 Obol Labs Inc. Licensed under the terms of a Business Source License 1.1
 
+//nolint:revive
 package metrics
 
 import (
diff --git a/core/tracker/inclusion.go b/core/tracker/inclusion.go
index 78e66b576..80883e7ec 100644
--- a/core/tracker/inclusion.go
+++ b/core/tracker/inclusion.go
@@ -687,12 +687,7 @@ func (a *InclusionChecker) checkBlock(ctx context.Context, slot uint64, attDutie
 
 	block := eth2Resp.Data
 
-	var found bool
-	if block != nil {
-		found = true
-	} else {
-		found = false
-	}
+	found := block != nil
 
 	a.checkBlockFunc(ctx, slot, found)