diff --git a/configuration_test.go b/configuration_test.go
index 7dcf099..eecf956 100644
--- a/configuration_test.go
+++ b/configuration_test.go
@@ -95,7 +95,6 @@ func TestConfigurationValidation(t *testing.T) {
 			expMsg: `app version must be valid semver`,
 		},
 	} {
-		tc := tc
 		t.Run(tc.name, func(t *testing.T) {
 			err := tc.cfg.validate()
 			if err == nil {
diff --git a/context_test.go b/context_test.go
index 5516e1a..b40dac9 100644
--- a/context_test.go
+++ b/context_test.go
@@ -76,7 +76,6 @@ func TestContextWithMethods(t *testing.T) {
 			{"WithMetadatum", func() { n.WithMetadatum(ctx, "whatever", "foo", "bar") }},
 			{"WithUser", func() { n.WithUser(ctx, User{}) }},
 		} {
-			tc := tc
 			t.Run(tc.name, func(t *testing.T) {
 				t.Parallel()
 				defer func() {
diff --git a/error_test.go b/error_test.go
index 24b0ad0..a1c3e1f 100644
--- a/error_test.go
+++ b/error_test.go
@@ -20,7 +20,6 @@ func TestSeverityReasonType(t *testing.T) {
 		{exp: "userSpecifiedSeverity", err: Error{Severity: SeverityError}},
 		{exp: "userSpecifiedSeverity", err: Error{Severity: SeverityError, Unhandled: true, Panic: true}},
 	} {
-		tc := tc
 		t.Run(tc.exp, func(t *testing.T) {
 			t.Parallel()
 			if got := severityReasonType(&tc.err); got != tc.exp {
@@ -101,7 +100,6 @@ func TestWrap(t *testing.T) {
 		{ctx: nil, err: err, msg: fmtBase, args: args, expErrString: wrappedFmtMsg, name: "all args but ctx"},
 		{ctx: ctx, err: err, msg: fmtBase, args: args, expErrString: wrappedFmtMsg, name: "all args"},
 	} {
-		tc := tc
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
 			if tc.msg != "" || tc.args != nil {
diff --git a/notifier_test.go b/notifier_test.go
index 0dcbe2a..92fa518 100644
--- a/notifier_test.go
+++ b/notifier_test.go
@@ -25,7 +25,6 @@ func TestApp(t *testing.T) {
 			exp:  `{ "duration": 5000, "releaseStage": "staging", "version": "1.5.2" }`,
 		},
 	} {
-		tc := tc
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
 			tc.cfg.appStartTime = time.Now().Add(-5 * time.Second)
diff --git a/session_test.go b/session_test.go
index c7bbf91..4fb77c6 100644
--- a/session_test.go
+++ b/session_test.go
@@ -80,7 +80,6 @@ func TestSessionAndContext(t *testing.T) {
 		{expUnhandledCount: 1, expHandledCount: 0, name: "unhandled", unhandled: true},
 		{expUnhandledCount: 0, expHandledCount: 1, name: "handled", unhandled: false},
 	} {
-		tc := tc
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
 			n, err := New(Configuration{APIKey: "abcd1234abcd1234abcd1234abcd1234", ReleaseStage: "dev", AppVersion: "1.2.3"})