diff --git a/go.mod b/go.mod
index 408ca72bcb..9a4ef72171 100644
--- a/go.mod
+++ b/go.mod
@@ -2,6 +2,8 @@ module github.com/prometheus/prometheus
 
 go 1.23.0
 
+toolchain go1.24.1
+
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.17.1
 	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.8.2
@@ -33,7 +35,7 @@ require (
 	github.com/grafana/regexp v0.0.0-20240518133315-a468a5bfb3bc
 	github.com/hashicorp/consul/api v1.31.2
 	github.com/hashicorp/nomad/api v0.0.0-20241218080744-e3ac00f30eec
-	github.com/hetznercloud/hcloud-go/v2 v2.20.1
+	github.com/hetznercloud/hcloud-go/v2 v2.21.0
 	github.com/ionos-cloud/sdk-go/v6 v6.3.2
 	github.com/json-iterator/go v1.1.12
 	github.com/klauspost/compress v1.18.0
diff --git a/go.sum b/go.sum
index 33f9924723..83a64aa92c 100644
--- a/go.sum
+++ b/go.sum
@@ -251,8 +251,8 @@ github.com/hashicorp/nomad/api v0.0.0-20241218080744-e3ac00f30eec h1:+YBzb977Vrm
 github.com/hashicorp/nomad/api v0.0.0-20241218080744-e3ac00f30eec/go.mod h1:svtxn6QnrQ69P23VvIWMR34tg3vmwLz4UdUzm1dSCgE=
 github.com/hashicorp/serf v0.10.1 h1:Z1H2J60yRKvfDYAOZLd2MU0ND4AH/WDz7xYHDWQsIPY=
 github.com/hashicorp/serf v0.10.1/go.mod h1:yL2t6BqATOLGc5HF7qbFkTfXoPIY0WZdWHfEvMqbG+4=
-github.com/hetznercloud/hcloud-go/v2 v2.20.1 h1:1wnKY6keRb6ip1kGPAtnU/ugjMxNkQ4tkulS6uc+vfk=
-github.com/hetznercloud/hcloud-go/v2 v2.20.1/go.mod h1:WSM7w+9tT86sJTNcF8a/oHljC3HUmQfcLxYsgx6PpSc=
+github.com/hetznercloud/hcloud-go/v2 v2.21.0 h1:wUpQT+fgAxIcdMtFvuCJ78ziqc/VARubpOQPQyj4Q84=
+github.com/hetznercloud/hcloud-go/v2 v2.21.0/go.mod h1:WSM7w+9tT86sJTNcF8a/oHljC3HUmQfcLxYsgx6PpSc=
 github.com/ionos-cloud/sdk-go/v6 v6.3.2 h1:2mUmrZZz6cPyT9IRX0T8fBLc/7XU/eTxP2Y5tS7/09k=
 github.com/ionos-cloud/sdk-go/v6 v6.3.2/go.mod h1:SXrO9OGyWjd2rZhAhEpdYN6VUAODzzqRdqA9BCviQtI=
 github.com/jarcoal/httpmock v1.3.1 h1:iUx3whfZWVf3jT01hQTO/Eo5sAYtB2/rqaUuOtpInww=