diff --git a/.travis.yml b/.travis.yml
index 5e20aa4..996f57a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,8 +4,8 @@ git:
   depth: 1
 env:
   - GO111MODULE=on
-go: [1.13.x, 1.14.x]
-os: [linux, osx]
+go: 1.15.x
+os: linux
 install:
   - ./travis/install.sh
 script:
diff --git a/entry.go b/entry.go
index 5a5cbfe..2e87f5f 100644
--- a/entry.go
+++ b/entry.go
@@ -123,11 +123,9 @@ func (entry *Entry) WithFields(fields Fields) *Entry {
 	for k, v := range fields {
 		isErrField := false
 		if t := reflect.TypeOf(v); t != nil {
-			switch t.Kind() {
-			case reflect.Func:
+			switch {
+			case t.Kind() == reflect.Func, t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Func:
 				isErrField = true
-			case reflect.Ptr:
-				isErrField = t.Elem().Kind() == reflect.Func
 			}
 		}
 		if isErrField {
diff --git a/json_formatter.go b/json_formatter.go
index ba7f237..afaf0fc 100644
--- a/json_formatter.go
+++ b/json_formatter.go
@@ -118,7 +118,7 @@ func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
 		encoder.SetIndent("", "  ")
 	}
 	if err := encoder.Encode(data); err != nil {
-		return nil, fmt.Errorf("failed to marshal fields to JSON, %v", err)
+		return nil, fmt.Errorf("failed to marshal fields to JSON, %w", err)
 	}
 
 	return b.Bytes(), nil
diff --git a/text_formatter.go b/text_formatter.go
index 3c28b54..8fc698a 100644
--- a/text_formatter.go
+++ b/text_formatter.go
@@ -235,6 +235,8 @@ func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []strin
 		levelColor = yellow
 	case ErrorLevel, FatalLevel, PanicLevel:
 		levelColor = red
+	case InfoLevel:
+		levelColor = blue
 	default:
 		levelColor = blue
 	}
diff --git a/travis/install.sh b/travis/install.sh
index 5fc40dd..8cbd0d7 100755
--- a/travis/install.sh
+++ b/travis/install.sh
@@ -2,9 +2,9 @@
 
 set -e
 
-# Install golanci 1.21.0
-if [[ "$TRAVIS_GO_VERSION" =~ ^1\.13\. ]]; then
-    curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh -s -- -b $(go env GOPATH)/bin v1.21.0
+# Install golanci 1.32.2
+if [[ "$TRAVIS_GO_VERSION" =~ ^1\.15\. ]]; then
+    curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh -s -- -b $(go env GOPATH)/bin v1.32.2
 fi
 
 # Only do this for go1.12 when modules are on so that it doesn't need to be done when modules are off as well.
@@ -15,8 +15,3 @@ fi
 if [[ "$GO111MODULE" ==  "on" ]]; then
     go mod download
 fi
-
-if [[ "$GO111MODULE" == "off" ]]; then
-    # Should contain all regular (not indirect) modules from go.mod
-    go get github.com/stretchr/testify golang.org/x/sys/unix golang.org/x/sys/windows
-fi
diff --git a/travis/lint.sh b/travis/lint.sh
index 0ed1d7c..98fb5bb 100755
--- a/travis/lint.sh
+++ b/travis/lint.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
-if [[ "$TRAVIS_GO_VERSION" =~ ^1\.13\. ]] && [[ "$TRAVIS_OS_NAME" == "linux" ]] && [[ "$GO111MODULE" == "on" ]]; then
+if [[ "$TRAVIS_GO_VERSION" =~ ^1\.15\. ]] && [[ "$TRAVIS_OS_NAME" == "linux" ]] && [[ "$GO111MODULE" == "on" ]]; then
     $(go env GOPATH)/bin/golangci-lint run ./...
+else
+    echo "linter has not been run"
 fi