diff --git a/cmd/nolmandy/nolmandy_server.go b/cmd/nolmandy/nolmandy_server.go
index 08624c3..70cd6f1 100644
--- a/cmd/nolmandy/nolmandy_server.go
+++ b/cmd/nolmandy/nolmandy_server.go
@@ -16,7 +16,7 @@ func main() {
 	var certFileName string
 
 	flag.IntVar(&port, "port", 8000, "Port to listen")
-	flag.StringVar(&certFileName, "certFile", "", "Cetificate file")
+	flag.StringVar(&certFileName, "certFile", "", "Certificate file")
 
 	flag.Parse()
 
diff --git a/receipt/model.go b/receipt/model.go
index e081ab2..61928a4 100644
--- a/receipt/model.go
+++ b/receipt/model.go
@@ -102,7 +102,7 @@ type Receipt struct {
 	OriginalPurchaseDate
 }
 
-// InApp represents the recipt for in-app purchase
+// InApp represents the receipt for in-app purchase
 // https://developer.apple.com/library/content/releasenotes/General/ValidateAppStoreReceipt/Chapters/ReceiptFields.html#//apple_ref/doc/uid/TP40010573-CH106-SW12
 type InApp struct {
 	Quantity              int64  `json:"quantity,string"`
@@ -129,7 +129,7 @@ type CreationDate struct {
 	DatePST datePST `json:"receipt_creation_date_pst"`
 }
 
-// RequestDate is the date when vefiry request was issued
+// RequestDate is the date when verify request was issued
 type RequestDate struct {
 	Date    date    `json:"request_date"`
 	DateMS  dateMS  `json:"request_date_ms"`
diff --git a/server/server.go b/server/server.go
index bef8f7d..0a78133 100644
--- a/server/server.go
+++ b/server/server.go
@@ -16,7 +16,7 @@ type Request struct {
 	Password    string `json:"password"`
 }
 
-// Serve is for serving receipt vefirification
+// Serve is for serving receipt verification
 func Serve(port int, cert *x509.Certificate) {
 	http.HandleFunc("/", Parse(cert))
 	log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", port), nil))