diff --git a/internal/shared/internaltest/harness.go.tmpl b/internal/shared/internaltest/harness.go.tmpl
index da3e7f18615..7223b9d2196 100644
--- a/internal/shared/internaltest/harness.go.tmpl
+++ b/internal/shared/internaltest/harness.go.tmpl
@@ -263,7 +263,7 @@ func (h *Harness) TestTracer(subjectFactory func() trace.Tracer) {
 }
 
 func (h *Harness) testSpan(tracerFactory func() trace.Tracer) {
-	var methods = map[string]func(span trace.Span){
+	methods := map[string]func(span trace.Span){
 		"#End": func(span trace.Span) {
 			span.End()
 		},
@@ -283,7 +283,7 @@ func (h *Harness) testSpan(tracerFactory func() trace.Tracer) {
 			span.SetAttributes(attribute.String("key1", "value"), attribute.Int("key2", 123))
 		},
 	}
-	var mechanisms = map[string]func() trace.Span{
+	mechanisms := map[string]func() trace.Span{
 		"Span created via Tracer#Start": func() trace.Span {
 			tracer := tracerFactory()
 			_, subject := tracer.Start(context.Background(), "test")
diff --git a/internal/shared/internaltest/text_map_carrier_test.go.tmpl b/internal/shared/internaltest/text_map_carrier_test.go.tmpl
index faf713cc2d0..086c8af26ea 100644
--- a/internal/shared/internaltest/text_map_carrier_test.go.tmpl
+++ b/internal/shared/internaltest/text_map_carrier_test.go.tmpl
@@ -22,9 +22,7 @@ import (
 	"testing"
 )
 
-var (
-	key, value = "test", "true"
-)
+var key, value = "test", "true"
 
 func TestTextMapCarrierKeys(t *testing.T) {
 	tmc := NewTextMapCarrier(map[string]string{key: value})
diff --git a/internal/shared/matchers/expectation.go.tmpl b/internal/shared/matchers/expectation.go.tmpl
index bdde84ea78a..4002fec51f1 100644
--- a/internal/shared/matchers/expectation.go.tmpl
+++ b/internal/shared/matchers/expectation.go.tmpl
@@ -27,9 +27,7 @@ import (
 	"time"
 )
 
-var (
-	stackTracePruneRE = regexp.MustCompile(`runtime\/debug|testing|internal\/matchers`)
-)
+var stackTracePruneRE = regexp.MustCompile(`runtime\/debug|testing|internal\/matchers`)
 
 type Expectation struct {
 	t      *testing.T
diff --git a/internal/shared/otlp/otlpmetric/oconf/options_test.go.tmpl b/internal/shared/otlp/otlpmetric/oconf/options_test.go.tmpl
index 16ddfdb7b53..7c52efc51d9 100644
--- a/internal/shared/otlp/otlpmetric/oconf/options_test.go.tmpl
+++ b/internal/shared/otlp/otlpmetric/oconf/options_test.go.tmpl
@@ -203,7 +203,7 @@ func TestConfigs(t *testing.T) {
 			},
 			asserts: func(t *testing.T, c *Config, grpcOption bool) {
 				if grpcOption {
-					//TODO: make sure gRPC's credentials actually works
+					// TODO: make sure gRPC's credentials actually works
 					assert.NotNil(t, c.Metrics.GRPCCredentials)
 				} else {
 					// nolint:staticcheck // ignoring tlsCert.RootCAs.Subjects is deprecated ERR because cert does not come from SystemCertPool.
diff --git a/internal/shared/otlp/otlpmetric/otest/client.go.tmpl b/internal/shared/otlp/otlpmetric/otest/client.go.tmpl
index 6c8be4982e5..37f25c9b468 100644
--- a/internal/shared/otlp/otlpmetric/otest/client.go.tmpl
+++ b/internal/shared/otlp/otlpmetric/otest/client.go.tmpl
@@ -38,7 +38,7 @@ import (
 
 var (
 	// Sat Jan 01 2000 00:00:00 GMT+0000.
-	start = time.Date(2000, time.January, 01, 0, 0, 0, 0, time.FixedZone("GMT", 0))
+	start = time.Date(2000, time.January, 0o1, 0, 0, 0, 0, time.FixedZone("GMT", 0))
 	end   = start.Add(30 * time.Second)
 
 	kvAlice = &cpb.KeyValue{Key: "user", Value: &cpb.AnyValue{
diff --git a/internal/shared/otlp/otlpmetric/transform/metricdata_test.go.tmpl b/internal/shared/otlp/otlpmetric/transform/metricdata_test.go.tmpl
index b94c48dae8d..676e5785633 100644
--- a/internal/shared/otlp/otlpmetric/transform/metricdata_test.go.tmpl
+++ b/internal/shared/otlp/otlpmetric/transform/metricdata_test.go.tmpl
@@ -40,7 +40,7 @@ type unknownAggT struct {
 
 var (
 	// Sat Jan 01 2000 00:00:00 GMT+0000.
-	start = time.Date(2000, time.January, 01, 0, 0, 0, 0, time.FixedZone("GMT", 0))
+	start = time.Date(2000, time.January, 0o1, 0, 0, 0, 0, time.FixedZone("GMT", 0))
 	end   = start.Add(30 * time.Second)
 
 	alice = attribute.NewSet(attribute.String("user", "alice"))
diff --git a/internal/shared/otlp/otlptrace/otlpconfig/options_test.go.tmpl b/internal/shared/otlp/otlptrace/otlpconfig/options_test.go.tmpl
index fcf99f0ad42..b83891a89f6 100644
--- a/internal/shared/otlp/otlptrace/otlpconfig/options_test.go.tmpl
+++ b/internal/shared/otlp/otlptrace/otlpconfig/options_test.go.tmpl
@@ -201,7 +201,7 @@ func TestConfigs(t *testing.T) {
 			},
 			asserts: func(t *testing.T, c *Config, grpcOption bool) {
 				if grpcOption {
-					//TODO: make sure gRPC's credentials actually works
+					// TODO: make sure gRPC's credentials actually works
 					assert.NotNil(t, c.Traces.GRPCCredentials)
 				} else {
 					// nolint:staticcheck // ignoring tlsCert.RootCAs.Subjects is deprecated ERR because cert does not come from SystemCertPool.