diff --git a/tracker/gioui/keyevent.go b/tracker/gioui/keyevent.go
index f7a9547..e4eddac 100644
--- a/tracker/gioui/keyevent.go
+++ b/tracker/gioui/keyevent.go
@@ -41,7 +41,7 @@ var defaultKeyBindingsYaml []byte
 
 func loadDefaultKeyBindings() []KeyBinding {
 	var keyBindings []KeyBinding
-	err := yaml.Unmarshal(defaultKeyBindingsYaml, &keyBindings)
+	err := yaml.UnmarshalStrict(defaultKeyBindingsYaml, &keyBindings)
 	if err != nil {
 		panic(fmt.Errorf("failed to unmarshal keybindings: %w", err))
 	}
diff --git a/tracker/gioui/preferences.go b/tracker/gioui/preferences.go
index fbd2d55..2a04384 100644
--- a/tracker/gioui/preferences.go
+++ b/tracker/gioui/preferences.go
@@ -29,7 +29,7 @@ var defaultPreferencesYaml []byte
 
 func loadDefaultPreferences() Preferences {
 	var preferences Preferences
-	err := yaml.Unmarshal(defaultPreferencesYaml, &preferences)
+	err := yaml.UnmarshalStrict(defaultPreferencesYaml, &preferences)
 	if err != nil {
 		panic(fmt.Errorf("failed to unmarshal preferences: %w", err))
 	}
diff --git a/tracker/presets.go b/tracker/presets.go
index eabf4ba..25c2e67 100644
--- a/tracker/presets.go
+++ b/tracker/presets.go
@@ -11,7 +11,7 @@ import (
 
 	"github.com/vsariola/sointu"
 	"github.com/vsariola/sointu/vm"
-	"gopkg.in/yaml.v3"
+	"gopkg.in/yaml.v2"
 )
 
 //go:generate go run generate/main.go
@@ -180,7 +180,7 @@ func init() {
 			return nil
 		}
 		var instr sointu.Instrument
-		if yaml.Unmarshal(data, &instr) == nil {
+		if yaml.UnmarshalStrict(data, &instr) == nil {
 			noExt := path[:len(path)-len(filepath.Ext(path))]
 			splitted := splitPath(noExt)
 			splitted = splitted[1:] // remove "presets" from the path