diff --git a/go.mod b/go.mod
index 77e2cb2..613ce14 100644
--- a/go.mod
+++ b/go.mod
@@ -31,6 +31,7 @@ require (
 	gopkg.in/yaml.v3 v3.0.1
 	gorm.io/driver/mysql v1.0.3
 	gorm.io/gorm v1.21.4
+	seehuhn.de/go/websocket v1.0.1
 )
 
 require (
diff --git a/go.sum b/go.sum
index aff8b68..7208f11 100644
--- a/go.sum
+++ b/go.sum
@@ -1104,3 +1104,5 @@ k8s.io/klog/v2 v2.80.1/go.mod h1:y1WjHnz7Dj687irZUWR/WLkLc5N1YHtjLdmgWjndZn0=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
+seehuhn.de/go/websocket v1.0.1 h1:oZWO2eAWirA0/fS/KAp+xucOHqHxPuK36qJsS6IFT4Y=
+seehuhn.de/go/websocket v1.0.1/go.mod h1:Anp29OM34nR1BZTcPU09vE1tmU9ILRcb2QqhZaGLJAA=
diff --git a/test/ws.go b/test/ws.go
new file mode 100644
index 0000000..f00e079
--- /dev/null
+++ b/test/ws.go
@@ -0,0 +1,14 @@
+package test
+
+import (
+	"seehuhn.de/go/websocket"
+	"testing"
+)
+
+func TestDecimal(t *testing.T) {
+	_ = &websocket.Handler{
+		Handle: func(conn *websocket.Conn) {
+
+		},
+	}
+}