diff --git a/services/observability/go.mod b/services/observability/go.mod
index cb7f29699..a75c5c1ab 100644
--- a/services/observability/go.mod
+++ b/services/observability/go.mod
@@ -1,6 +1,6 @@
 module github.com/stackitcloud/stackit-sdk-go/services/observability
 
-go 1.21
+go 1.18
 
 require (
 	github.com/google/go-cmp v0.6.0