--- a/pkg/common/random.go	Wed Jun 12 17:30:20 2019 +0200
+++ b/pkg/common/random.go	Thu Jun 13 13:14:40 2019 +0200
@@ -18,6 +18,7 @@
 	"crypto/rand"
 	"io"
 	"log"
+	"math"
 	"math/big"
 	mrand "math/rand"
 	"time"
@@ -71,7 +72,15 @@
 	if low > high {
 		low, high = high, low
 	}
-	rnd := mrand.New(mrand.NewSource(time.Now().Unix()))
+
+	var seed int64
+	if seedInt, err := rand.Int(rand.Reader, big.NewInt(math.MaxInt64)); err != nil {
+		log.Printf("warn: Generating good random seed failed: %v\n", err)
+		seed = time.Now().Unix()
+	} else {
+		seed = seedInt.Int64()
+	}
+	rnd := mrand.New(mrand.NewSource(seed))
 	m := high - low
 	return func() float64 { return rnd.Float64()*m + low }
 }