diff --git a/common/common.go b/common/common.go
index f2af18db..595c91bb 100644
--- a/common/common.go
+++ b/common/common.go
@@ -145,7 +145,7 @@ func IsValidCryptoAddress(address, crypto string) (bool, error) {
 
 // YesOrNo returns a boolean variable to check if input is "y" or "yes"
 func YesOrNo(input string) bool {
-	if strings.ToLower(input) == "y" || strings.ToLower(input) == "yes" {
+	if strings.EqualFold(input, "y") || strings.EqualFold(input, "yes") {
 		return true
 	}
 	return false
diff --git a/common/convert/convert.go b/common/convert/convert.go
index 27c6b1cf..3fe3f96c 100644
--- a/common/convert/convert.go
+++ b/common/convert/convert.go
@@ -1,55 +1,55 @@
-package convert
-
-import (
-	"fmt"
-	"strconv"
-	"time"
-)
-
-// FloatFromString format
-func FloatFromString(raw interface{}) (float64, error) {
-	str, ok := raw.(string)
-	if !ok {
-		return 0, fmt.Errorf("unable to parse, value not string: %T", raw)
-	}
-	flt, err := strconv.ParseFloat(str, 64)
-	if err != nil {
-		return 0, fmt.Errorf("could not convert value: %s Error: %s", str, err)
-	}
-	return flt, nil
-}
-
-// IntFromString format
-func IntFromString(raw interface{}) (int, error) {
-	str, ok := raw.(string)
-	if !ok {
-		return 0, fmt.Errorf("unable to parse, value not string: %T", raw)
-	}
-	n, err := strconv.Atoi(str)
-	if err != nil {
-		return 0, fmt.Errorf("unable to parse as int: %T", raw)
-	}
-	return n, nil
-}
-
-// Int64FromString format
-func Int64FromString(raw interface{}) (int64, error) {
-	str, ok := raw.(string)
-	if !ok {
-		return 0, fmt.Errorf("unable to parse, value not string: %T", raw)
-	}
-	n, err := strconv.ParseInt(str, 10, 64)
-	if err != nil {
-		return 0, fmt.Errorf("unable to parse as int64: %T", raw)
-	}
-	return n, nil
-}
-
-// TimeFromUnixTimestampFloat format
-func TimeFromUnixTimestampFloat(raw interface{}) (time.Time, error) {
-	ts, ok := raw.(float64)
-	if !ok {
-		return time.Time{}, fmt.Errorf("unable to parse, value not float64: %T", raw)
-	}
-	return time.Unix(0, int64(ts)*int64(time.Millisecond)), nil
-}
+package convert
+
+import (
+	"fmt"
+	"strconv"
+	"time"
+)
+
+// FloatFromString format
+func FloatFromString(raw interface{}) (float64, error) {
+	str, ok := raw.(string)
+	if !ok {
+		return 0, fmt.Errorf("unable to parse, value not string: %T", raw)
+	}
+	flt, err := strconv.ParseFloat(str, 64)
+	if err != nil {
+		return 0, fmt.Errorf("could not convert value: %s Error: %s", str, err)
+	}
+	return flt, nil
+}
+
+// IntFromString format
+func IntFromString(raw interface{}) (int, error) {
+	str, ok := raw.(string)
+	if !ok {
+		return 0, fmt.Errorf("unable to parse, value not string: %T", raw)
+	}
+	n, err := strconv.Atoi(str)
+	if err != nil {
+		return 0, fmt.Errorf("unable to parse as int: %T", raw)
+	}
+	return n, nil
+}
+
+// Int64FromString format
+func Int64FromString(raw interface{}) (int64, error) {
+	str, ok := raw.(string)
+	if !ok {
+		return 0, fmt.Errorf("unable to parse, value not string: %T", raw)
+	}
+	n, err := strconv.ParseInt(str, 10, 64)
+	if err != nil {
+		return 0, fmt.Errorf("unable to parse as int64: %T", raw)
+	}
+	return n, nil
+}
+
+// TimeFromUnixTimestampFloat format
+func TimeFromUnixTimestampFloat(raw interface{}) (time.Time, error) {
+	ts, ok := raw.(float64)
+	if !ok {
+		return time.Time{}, fmt.Errorf("unable to parse, value not float64: %T", raw)
+	}
+	return time.Unix(0, int64(ts)*int64(time.Millisecond)), nil
+}
diff --git a/common/convert/convert_test.go b/common/convert/convert_test.go
index c3aef95a..b6dd1f90 100644
--- a/common/convert/convert_test.go
+++ b/common/convert/convert_test.go
@@ -1,96 +1,96 @@
-package convert
-
-import (
-	"testing"
-	"time"
-)
-
-func TestFloatFromString(t *testing.T) {
-	t.Parallel()
-	testString := "1.41421356237"
-	expectedOutput := float64(1.41421356237)
-
-	actualOutput, err := FloatFromString(testString)
-	if actualOutput != expectedOutput || err != nil {
-		t.Errorf("Test failed. Common FloatFromString. Expected '%v'. Actual '%v'. Error: %s",
-			expectedOutput, actualOutput, err)
-	}
-
-	var testByte []byte
-	_, err = FloatFromString(testByte)
-	if err == nil {
-		t.Error("Test failed. Common FloatFromString. Converted non-string.")
-	}
-
-	testString = "   something unconvertible  "
-	_, err = FloatFromString(testString)
-	if err == nil {
-		t.Error("Test failed. Common FloatFromString. Converted invalid syntax.")
-	}
-}
-
-func TestIntFromString(t *testing.T) {
-	t.Parallel()
-	testString := "1337"
-	expectedOutput := 1337
-
-	actualOutput, err := IntFromString(testString)
-	if actualOutput != expectedOutput || err != nil {
-		t.Errorf("Test failed. Common IntFromString. Expected '%v'. Actual '%v'. Error: %s",
-			expectedOutput, actualOutput, err)
-	}
-
-	var testByte []byte
-	_, err = IntFromString(testByte)
-	if err == nil {
-		t.Error("Test failed. Common IntFromString. Converted non-string.")
-	}
-
-	testString = "1.41421356237"
-	_, err = IntFromString(testString)
-	if err == nil {
-		t.Error("Test failed. Common IntFromString. Converted invalid syntax.")
-	}
-}
-
-func TestInt64FromString(t *testing.T) {
-	t.Parallel()
-	testString := "4398046511104"
-	expectedOutput := int64(1 << 42)
-
-	actualOutput, err := Int64FromString(testString)
-	if actualOutput != expectedOutput || err != nil {
-		t.Errorf("Test failed. Common Int64FromString. Expected '%v'. Actual '%v'. Error: %s",
-			expectedOutput, actualOutput, err)
-	}
-
-	var testByte []byte
-	_, err = Int64FromString(testByte)
-	if err == nil {
-		t.Error("Test failed. Common Int64FromString. Converted non-string.")
-	}
-
-	testString = "1.41421356237"
-	_, err = Int64FromString(testString)
-	if err == nil {
-		t.Error("Test failed. Common Int64FromString. Converted invalid syntax.")
-	}
-}
-
-func TestTimeFromUnixTimestampFloat(t *testing.T) {
-	t.Parallel()
-	testTimestamp := float64(1414456320000)
-	expectedOutput := time.Date(2014, time.October, 28, 0, 32, 0, 0, time.UTC)
-
-	actualOutput, err := TimeFromUnixTimestampFloat(testTimestamp)
-	if actualOutput.UTC().String() != expectedOutput.UTC().String() || err != nil {
-		t.Errorf("Test failed. Common TimeFromUnixTimestampFloat. Expected '%v'. Actual '%v'. Error: %s",
-			expectedOutput, actualOutput, err)
-	}
-
-	testString := "Time"
-	_, err = TimeFromUnixTimestampFloat(testString)
-	if err == nil {
-		t.Error("Test failed. Common TimeFromUnixTimestampFloat. Converted invalid syntax.")
-	}
-}
+package convert
+
+import (
+	"testing"
+	"time"
+)
+
+func TestFloatFromString(t *testing.T) {
+	t.Parallel()
+	testString := "1.41421356237"
+	expectedOutput := float64(1.41421356237)
+
+	actualOutput, err := FloatFromString(testString)
+	if actualOutput != expectedOutput || err != nil {
+		t.Errorf("Test failed. Common FloatFromString. Expected '%v'. Actual '%v'. Error: %s",
+			expectedOutput, actualOutput, err)
+	}
+
+	var testByte []byte
+	_, err = FloatFromString(testByte)
+	if err == nil {
+		t.Error("Test failed. Common FloatFromString. Converted non-string.")
+	}
+
+	testString = "   something unconvertible  "
+	_, err = FloatFromString(testString)
+	if err == nil {
+		t.Error("Test failed. Common FloatFromString. Converted invalid syntax.")
+	}
+}
+
+func TestIntFromString(t *testing.T) {
+	t.Parallel()
+	testString := "1337"
+	expectedOutput := 1337
+
+	actualOutput, err := IntFromString(testString)
+	if actualOutput != expectedOutput || err != nil {
+		t.Errorf("Test failed. Common IntFromString. Expected '%v'. Actual '%v'. Error: %s",
+			expectedOutput, actualOutput, err)
+	}
+
+	var testByte []byte
+	_, err = IntFromString(testByte)
+	if err == nil {
+		t.Error("Test failed. Common IntFromString. Converted non-string.")
+	}
+
+	testString = "1.41421356237"
+	_, err = IntFromString(testString)
+	if err == nil {
+		t.Error("Test failed. Common IntFromString. Converted invalid syntax.")
+	}
+}
+
+func TestInt64FromString(t *testing.T) {
+	t.Parallel()
+	testString := "4398046511104"
+	expectedOutput := int64(1 << 42)
+
+	actualOutput, err := Int64FromString(testString)
+	if actualOutput != expectedOutput || err != nil {
+		t.Errorf("Test failed. Common Int64FromString. Expected '%v'. Actual '%v'. Error: %s",
+			expectedOutput, actualOutput, err)
+	}
+
+	var testByte []byte
+	_, err = Int64FromString(testByte)
+	if err == nil {
+		t.Error("Test failed. Common Int64FromString. Converted non-string.")
+	}
+
+	testString = "1.41421356237"
+	_, err = Int64FromString(testString)
+	if err == nil {
+		t.Error("Test failed. Common Int64FromString. Converted invalid syntax.")
+	}
+}
+
+func TestTimeFromUnixTimestampFloat(t *testing.T) {
+	t.Parallel()
+	testTimestamp := float64(1414456320000)
+	expectedOutput := time.Date(2014, time.October, 28, 0, 32, 0, 0, time.UTC)
+
+	actualOutput, err := TimeFromUnixTimestampFloat(testTimestamp)
+	if actualOutput.UTC().String() != expectedOutput.UTC().String() || err != nil {
+		t.Errorf("Test failed. Common TimeFromUnixTimestampFloat. Expected '%v'. Actual '%v'. Error: %s",
+			expectedOutput, actualOutput, err)
+	}
+
+	testString := "Time"
+	_, err = TimeFromUnixTimestampFloat(testString)
+	if err == nil {
+		t.Error("Test failed. Common TimeFromUnixTimestampFloat. Converted invalid syntax.")
+	}
+}
diff --git a/communications/smsglobal/smsglobal.go b/communications/smsglobal/smsglobal.go
index 2157c663..ad051f7b 100644
--- a/communications/smsglobal/smsglobal.go
+++ b/communications/smsglobal/smsglobal.go
@@ -89,7 +89,7 @@ func (s *SMSGlobal) GetContactByNumber(number string) (Contact, error) {
 // GetContactByName returns a contact with supplied name
 func (s *SMSGlobal) GetContactByName(name string) (Contact, error) {
 	for x := range s.Contacts {
-		if strings.ToLower(s.Contacts[x].Name) == strings.ToLower(name) {
+		if strings.EqualFold(s.Contacts[x].Name, name) {
 			return s.Contacts[x], nil
 		}
 	}
@@ -113,7 +113,7 @@ func (s *SMSGlobal) AddContact(contact Contact) error {
 // ContactExists checks to see if a contact exists
 func (s *SMSGlobal) ContactExists(contact Contact) bool {
 	for x := range s.Contacts {
-		if s.Contacts[x].Number == contact.Number && strings.ToLower(s.Contacts[x].Name) == strings.ToLower(contact.Name) {
+		if s.Contacts[x].Number == contact.Number && strings.EqualFold(s.Contacts[x].Name, contact.Name) {
 			return true
 		}
 	}
diff --git a/currency/forexprovider/exchangeratesapi.io/exchangeratesapi.go b/currency/forexprovider/exchangeratesapi.io/exchangeratesapi.go
index 25326139..5a5289a6 100644
--- a/currency/forexprovider/exchangeratesapi.io/exchangeratesapi.go
+++ b/currency/forexprovider/exchangeratesapi.io/exchangeratesapi.go
@@ -66,7 +66,7 @@ func cleanCurrencies(baseCurrency, symbols string) string {
 		}
 
 		// remove and warn about any unsupported currencies
-		if !strings.Contains(exchangeRatesSupportedCurrencies, x) {
+		if !strings.Contains(exchangeRatesSupportedCurrencies, x) { // nolint:gocritic
 			log.Warnf("Forex provider ExchangeRatesAPI does not support currency %s, removing from forex rates query.", x)
 			continue
 		}
diff --git a/engine/events/events.go b/engine/events/events.go
index f5f37400..9fb444d6 100644
--- a/engine/events/events.go
+++ b/engine/events/events.go
@@ -329,7 +329,7 @@ func IsValidExchange(exchangeName string) bool {
 	exchangeName = strings.ToLower(exchangeName)
 	cfg := config.GetConfig()
 	for x := range cfg.Exchanges {
-		if strings.ToLower(cfg.Exchanges[x].Name) == exchangeName && cfg.Exchanges[x].Enabled {
+		if strings.EqualFold(cfg.Exchanges[x].Name, exchangeName) && cfg.Exchanges[x].Enabled {
 			return true
 		}
 	}
diff --git a/exchanges/exmo/exmo.go b/exchanges/exmo/exmo.go
index 5833ddf0..de89512b 100644
--- a/exchanges/exmo/exmo.go
+++ b/exchanges/exmo/exmo.go
@@ -238,7 +238,7 @@ func (e *EXMO) WithdrawCryptocurrency(currency, address, invoice string, amount
 	v.Set("currency", currency)
 	v.Set("address", address)
 
-	if strings.ToUpper(currency) == "XRP" {
+	if strings.EqualFold(currency, "XRP") {
 		v.Set(invoice, invoice)
 	}