diff --git a/area.go b/area.go
index a001f00..8d95156 100644
--- a/area.go
+++ b/area.go
@@ -45,6 +45,10 @@ func AreaRetrieve() (areas []Area, err error) { // {{{
 		return
 	}
 
+	if jsonData == nil {
+		return
+	}
+
 	err = json.Unmarshal(jsonData, &areas)
 	if err != nil {
 		err = re.Wrap(err)
diff --git a/main.go b/main.go
index 5384cb2..bc8aaeb 100644
--- a/main.go
+++ b/main.go
@@ -23,7 +23,7 @@ import (
 	"time"
 )
 
-const VERSION = "v3"
+const VERSION = "v4"
 
 var (
 	logger             *slog.Logger
diff --git a/problem.go b/problem.go
index 5d6f0b5..67717dd 100644
--- a/problem.go
+++ b/problem.go
@@ -55,6 +55,10 @@ func ProblemsRetrieve() (problems []Problem, err error) {
 		return
 	}
 
+	if jsonBody == nil {
+		return
+	}
+
 	err = json.Unmarshal(jsonBody, &problems)
 	if err != nil {
 		err = we.Wrap(err)
diff --git a/trigger.go b/trigger.go
index d7273ad..01d6043 100644
--- a/trigger.go
+++ b/trigger.go
@@ -63,6 +63,10 @@ func TriggersRetrieve() (areas []Area, err error) { // {{{
 		return
 	}
 
+	if jsonData == nil {
+		return
+	}
+
 	err = json.Unmarshal(jsonData, &areas)
 	if err != nil {
 		err = we.Wrap(err)