diff --git a/env_test.go b/env_test.go
index af235a9..7e49cd5 100644
--- a/env_test.go
+++ b/env_test.go
@@ -96,6 +96,9 @@ func setEnvVars(t *testing.T, structName, prefix string) {
 			"POSTGRES_DBNAME":            "configdb",
 			"POSTGRES_AVAILABILITYRATIO": "8.23",
 			"POSTGRES_FOO":               "8.23,9.12,11,90",
+			"EPOCH":                      "1638551008",
+			"EPOCH32":                    "1638551009",
+			"EPOCH64":                    "1638551010",
 		}
 	case "CamelCaseServer":
 		env = map[string]string{
diff --git a/flag_test.go b/flag_test.go
index 9a88a91..68bb669 100644
--- a/flag_test.go
+++ b/flag_test.go
@@ -206,6 +206,9 @@ func getFlags(t *testing.T, structName, prefix string) []string {
 			"-postgres-hosts":             "192.168.2.1,192.168.2.2,192.168.2.3",
 			"-postgres-dbname":            "configdb",
 			"-postgres-availabilityratio": "8.23",
+			"-epoch":                      "1638551008",
+			"-epoch32":                    "1638551009",
+			"-epoch64":                    "1638551010",
 		}
 	case "FlattenedServer":
 		flags = map[string]string{
diff --git a/multiconfig.go b/multiconfig.go
index 0070344..7723ea7 100644
--- a/multiconfig.go
+++ b/multiconfig.go
@@ -218,7 +218,42 @@ func fieldSet(field *structs.Field, v string) error {
 			return fmt.Errorf("multiconfig: field '%s' of type int64 is unsupported: %s (%T)",
 				field.Name(), field.Kind(), t)
 		}
+	case reflect.Uint:
+		u, err := strconv.ParseUint(v, 10, 0)
+		if err != nil {
+			return err
+		}
+
+		if err := field.Set(uint(u)); err != nil {
+			return err
+		}
+	case reflect.Uint16:
+		u, err := strconv.ParseUint(v, 10, 16)
+		if err != nil {
+			return err
+		}
 
+		if err := field.Set(uint16(u)); err != nil {
+			return err
+		}
+	case reflect.Uint32:
+		u, err := strconv.ParseUint(v, 10, 32)
+		if err != nil {
+			return err
+		}
+
+		if err := field.Set(uint32(u)); err != nil {
+			return err
+		}
+	case reflect.Uint64:
+		u, err := strconv.ParseUint(v, 10, 64)
+		if err != nil {
+			return err
+		}
+
+		if err := field.Set(u); err != nil {
+			return err
+		}
 	default:
 		return fmt.Errorf("multiconfig: field '%s' has unsupported type: %s", field.Name(), field.Kind())
 	}
diff --git a/multiconfig_test.go b/multiconfig_test.go
index 3ff44ed..1cda0f5 100644
--- a/multiconfig_test.go
+++ b/multiconfig_test.go
@@ -16,12 +16,15 @@ type (
 		Postgres   Postgres
 		unexported string
 		Interval   time.Duration
+		Epoch      uint   `default:"1638551008"`
+		Epoch32    uint32 `default:"1638551009"`
+		Epoch64    uint64 `default:"1638551010"`
 	}
 
 	// Postgres holds Postgresql database related configuration
 	Postgres struct {
 		Enabled           bool
-		Port              int      `required:"true" customRequired:"yes"`
+		Port              uint16   `required:"true" customRequired:"yes"`
 		Hosts             []string `required:"true"`
 		DBName            string   `default:"configdb"`
 		AvailabilityRatio float64
@@ -67,6 +70,9 @@ func getDefaultServer() *Server {
 			DBName:            "configdb",
 			AvailabilityRatio: 8.23,
 		},
+		Epoch:   1638551008,
+		Epoch32: 1638551009,
+		Epoch64: 1638551010,
 	}
 }
 
@@ -155,6 +161,18 @@ func testStruct(t *testing.T, s *Server, d *Server) {
 	}
 
 	testPostgres(t, s.Postgres, d.Postgres)
+
+	if s.Epoch != d.Epoch {
+		t.Errorf("Epoch value is wrong: %v, want: %v", s.Epoch, d.Epoch)
+	}
+
+	if s.Epoch32 != d.Epoch32 {
+		t.Errorf("Epoch32 value is wrong: %v, want: %v", s.Epoch32, d.Epoch32)
+	}
+
+	if s.Epoch64 != d.Epoch64 {
+		t.Errorf("Epoch64 value is wrong: %v, want: %v", s.Epoch64, d.Epoch64)
+	}
 }
 
 func testFlattenedStruct(t *testing.T, s *FlattenedServer, d *Server) {
diff --git a/testdata/config.json b/testdata/config.json
index 6c2e924..56af004 100644
--- a/testdata/config.json
+++ b/testdata/config.json
@@ -20,5 +20,8 @@
       "192.168.2.3"
     ],
     "AvailabilityRatio": 8.23
-  }
+  },
+  "Epoch": 1638551008,
+  "Epoch32": 1638551009,
+  "Epoch64": 1638551010
 }
diff --git a/testdata/config.toml b/testdata/config.toml
index bfc01a4..a285aa8 100644
--- a/testdata/config.toml
+++ b/testdata/config.toml
@@ -10,3 +10,7 @@ Enabled           = true
 Port              = 5432
 Hosts             = ["192.168.2.1", "192.168.2.2", "192.168.2.3"]
 AvailabilityRatio = 8.23
+
+Epoch             = 1638551008
+Epoch32           = 1638551009
+Epoch64           = 1638551010
diff --git a/testdata/config.yaml b/testdata/config.yaml
index 8354703..64e62c9 100644
--- a/testdata/config.yaml
+++ b/testdata/config.yaml
@@ -26,3 +26,6 @@ postgres:
         - 192.168.2.3
     availabilityratio:  8.23
 
+epoch: 1638551008
+epoch32: 1638551009
+epoch64: 1638551010