diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 404b98dba..20ec7b46f 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -39,7 +39,7 @@ jobs:
       - name: Golangci-lint
         uses: golangci/golangci-lint-action@v2
         with:
-          args: --print-issued-lines --sort-results --no-config --timeout=10m --disable-all -E deadcode --skip-files=validator/web/site_data.go
+          args: --print-issued-lines --sort-results --no-config --timeout=10m --disable-all -E deadcode  -E errcheck -E gosimple --skip-files=validator/web/site_data.go
 
   build:
     name: Build
diff --git a/beacon-chain/core/altair/upgrade_test.go b/beacon-chain/core/altair/upgrade_test.go
index 530bc7afe..44e020322 100644
--- a/beacon-chain/core/altair/upgrade_test.go
+++ b/beacon-chain/core/altair/upgrade_test.go
@@ -9,7 +9,6 @@ import (
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/altair"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/time"
-	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	stateAltair "github.com/prysmaticlabs/prysm/beacon-chain/state/v2"
 	"github.com/prysmaticlabs/prysm/config/params"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
@@ -79,8 +78,6 @@ func TestUpgradeToAltair(t *testing.T) {
 	preForkState := st.Copy()
 	aState, err := altair.UpgradeToAltair(context.Background(), st)
 	require.NoError(t, err)
-	_, ok := aState.(state.BeaconStateAltair)
-	require.Equal(t, true, ok)
 
 	require.Equal(t, preForkState.GenesisTime(), aState.GenesisTime())
 	require.DeepSSZEqual(t, preForkState.GenesisValidatorRoot(), aState.GenesisValidatorRoot())
diff --git a/beacon-chain/rpc/prysm/v1alpha1/validator/proposer_utils_bench_test.go b/beacon-chain/rpc/prysm/v1alpha1/validator/proposer_utils_bench_test.go
index 811660bc2..4a47bd047 100644
--- a/beacon-chain/rpc/prysm/v1alpha1/validator/proposer_utils_bench_test.go
+++ b/beacon-chain/rpc/prysm/v1alpha1/validator/proposer_utils_bench_test.go
@@ -9,6 +9,7 @@ import (
 	"github.com/prysmaticlabs/prysm/config/params"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	aggtesting "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/attestation/aggregation/testing"
+	"github.com/prysmaticlabs/prysm/testing/require"
 )
 
 func BenchmarkProposerAtts_sortByProfitability(b *testing.B) {
@@ -49,7 +50,8 @@ func BenchmarkProposerAtts_sortByProfitability(b *testing.B) {
 		for i, att := range atts {
 			attsCopy[i] = ethpb.CopyAttestation(att)
 		}
-		attsCopy.sortByProfitability()
+		_, err := attsCopy.sortByProfitability()
+		require.NoError(b, err, "Could not sort attestations by profitability")
 	}
 
 	for _, tt := range tests {
diff --git a/beacon-chain/sync/batch_verifier.go b/beacon-chain/sync/batch_verifier.go
index f62c58ad1..7c412cc40 100644
--- a/beacon-chain/sync/batch_verifier.go
+++ b/beacon-chain/sync/batch_verifier.go
@@ -79,7 +79,7 @@ func (s *Service) validateWithBatchVerifier(ctx context.Context, message string,
 }
 
 func verifyBatch(verifierBatch []*signatureVerifier) {
-	if verifierBatch == nil || len(verifierBatch) == 0 {
+	if len(verifierBatch) == 0 {
 		return
 	}
 	aggSet := verifierBatch[0].set
diff --git a/crypto/bls/blst/public_key.go b/crypto/bls/blst/public_key.go
index c9d7da69f..95119a6d5 100644
--- a/crypto/bls/blst/public_key.go
+++ b/crypto/bls/blst/public_key.go
@@ -57,7 +57,7 @@ func AggregatePublicKeys(pubs [][]byte) (common.PublicKey, error) {
 	if features.Get().SkipBLSVerify {
 		return &PublicKey{}, nil
 	}
-	if pubs == nil || len(pubs) == 0 {
+	if len(pubs) == 0 {
 		return nil, errors.New("nil or empty public keys")
 	}
 	agg := new(blstAggregatePublicKey)