diff --git a/floaty.example.yaml b/floaty.example.yaml
new file mode 100644
index 0000000..f641bb3
--- /dev/null
+++ b/floaty.example.yaml
@@ -0,0 +1,5 @@
+provider: cloudscale
+cloudscale:
+  token: fake-token
+managed-addresses:
+  - 192.0.2.10
diff --git a/go.mod b/go.mod
index e8e61bc..3175ca5 100644
--- a/go.mod
+++ b/go.mod
@@ -14,6 +14,7 @@ require (
 	github.com/sirupsen/logrus v1.9.3
 	github.com/stretchr/testify v1.8.4
 	gopkg.in/yaml.v2 v2.4.0
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
@@ -24,5 +25,4 @@ require (
 	github.com/vishvananda/netlink v1.1.0 // indirect
 	github.com/vishvananda/netns v0.0.4 // indirect
 	golang.org/x/sys v0.17.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/notify_config.go b/notify_config.go
index c6edcab..a6b2eeb 100644
--- a/notify_config.go
+++ b/notify_config.go
@@ -3,11 +3,11 @@ package main
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"net/url"
+	"os"
 	"time"
 
-	yaml "gopkg.in/yaml.v2"
+	yaml "gopkg.in/yaml.v3"
 )
 
 const (
@@ -51,12 +51,17 @@ func newNotifyConfig() notifyConfig {
 
 // Update configuration from a YAML file
 func (c *notifyConfig) ReadFromYAML(path string) error {
-	content, err := ioutil.ReadFile(path)
+	configreader, err := os.Open(path)
 	if err != nil {
 		return err
 	}
 
-	return yaml.UnmarshalStrict(content, c)
+	decoder := yaml.NewDecoder(configreader)
+	// NOTE(sg): With gopkg.in/yaml.v3, we use the decoder API instead of
+	// `Unmarshal` so we can ensure that we get errors for unknown fields.
+	decoder.KnownFields(true)
+
+	return decoder.Decode(c)
 }
 
 func (c notifyConfig) NewProvider() (elasticIPProvider, error) {
diff --git a/notify_config_test.go b/notify_config_test.go
new file mode 100644
index 0000000..fbf8015
--- /dev/null
+++ b/notify_config_test.go
@@ -0,0 +1,17 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLoadConfig(t *testing.T) {
+	cfg, err := loadConfig("floaty.example.yaml", false)
+	assert.NoError(t, err)
+	assert.Equalf(t, "cloudscale", cfg.Provider, "error parsing provider from config file")
+	assert.Equalf(t, "fake-token", cfg.Cloudscale.Token, "error parsing cloudscale token from config file")
+	managedAddr := netAddress{}
+	managedAddr.UnmarshalText([]byte("192.0.2.10"))
+	assert.Equalf(t, []netAddress{managedAddr}, cfg.ManagedAddresses, "error parsing managed addresses from config file")
+}