diff --git a/go.mod b/go.mod
index 4ef0ff9..98ac49f 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/nwg-piotr/nwg-drawer
 
-go 1.16
+go 1.18
 
 require (
 	github.com/allan-simon/go-singleinstance v0.0.0-20210120080615-d0997106ab37
@@ -10,3 +10,11 @@ require (
 	github.com/joshuarubin/go-sway v0.0.4
 	github.com/sirupsen/logrus v1.8.1
 )
+
+require (
+	github.com/joshuarubin/lifecycle v1.0.0 // indirect
+	go.uber.org/atomic v1.3.2 // indirect
+	go.uber.org/multierr v1.1.0 // indirect
+	golang.org/x/sync v0.0.0-20190412183630-56d357773e84 // indirect
+	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c // indirect
+)
diff --git a/main.go b/main.go
index 9923bb8..06fc320 100644
--- a/main.go
+++ b/main.go
@@ -21,7 +21,7 @@ import (
 	"github.com/gotk3/gotk3/gtk"
 )
 
-const version = "0.3.3"
+const version = "0.3.4"
 
 var (
 	appDirs         []string
diff --git a/tools.go b/tools.go
index ff08045..18add21 100644
--- a/tools.go
+++ b/tools.go
@@ -534,7 +534,8 @@ func savePinned() {
 	}(f)
 
 	for _, line := range pinned {
-		if line != "" {
+		//skip invalid lines
+		if line != "" && id2entry[line].DesktopID != "" {
 			_, err := f.WriteString(line + "\n")
 
 			if err != nil {
diff --git a/uicomponents.go b/uicomponents.go
index f5bcb24..9295622 100644
--- a/uicomponents.go
+++ b/uicomponents.go
@@ -32,6 +32,10 @@ func setUpPinnedFlowBox() *gtk.FlowBox {
 	if len(pinned) > 0 {
 		for _, desktopID := range pinned {
 			entry := id2entry[desktopID]
+			if entry.DesktopID == "" {
+				log.Debugf("Pinned item doesn't seem to exist: %s", desktopID)
+				continue
+			}
 
 			btn, _ := gtk.ButtonNew()