diff --git a/.go-version b/.go-version
index 26d7b6e756e0..0c5bf37cae77 100644
--- a/.go-version
+++ b/.go-version
@@ -1 +1 @@
-1.21.12
+1.21.13
diff --git a/api/go.mod b/api/go.mod
index 9be4fd65d695..ad95f2c8cdf2 100644
--- a/api/go.mod
+++ b/api/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/api/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 require (
 	github.com/coreos/go-semver v0.3.0
diff --git a/client/pkg/go.mod b/client/pkg/go.mod
index 561a38a0555e..e76d9917ee76 100644
--- a/client/pkg/go.mod
+++ b/client/pkg/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/client/pkg/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 require (
 	github.com/coreos/go-systemd/v22 v22.3.2
diff --git a/client/v2/go.mod b/client/v2/go.mod
index 337b2980df6c..10b7a1f72d1d 100644
--- a/client/v2/go.mod
+++ b/client/v2/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/client/v2
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 require (
 	github.com/json-iterator/go v1.1.11
diff --git a/client/v3/go.mod b/client/v3/go.mod
index 3eb7a89d064f..518faa5358ec 100644
--- a/client/v3/go.mod
+++ b/client/v3/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/client/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 require (
 	github.com/dustin/go-humanize v1.0.0
diff --git a/etcdctl/go.mod b/etcdctl/go.mod
index 5c3a32754af6..e6c9cf3a68ea 100644
--- a/etcdctl/go.mod
+++ b/etcdctl/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/etcdctl/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 require (
 	github.com/bgentry/speakeasy v0.1.0
diff --git a/etcdutl/go.mod b/etcdutl/go.mod
index 0c3a4cbe918f..e97320395e0c 100644
--- a/etcdutl/go.mod
+++ b/etcdutl/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/etcdutl/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 replace (
 	go.etcd.io/etcd/api/v3 => ../api
diff --git a/go.mod b/go.mod
index a23b807b287a..da4a9e39af0f 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 replace (
 	go.etcd.io/etcd/api/v3 => ./api
diff --git a/pkg/go.mod b/pkg/go.mod
index 29c149ade27d..ff9bde6dc884 100644
--- a/pkg/go.mod
+++ b/pkg/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/pkg/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 require (
 	github.com/creack/pty v1.1.11
diff --git a/raft/go.mod b/raft/go.mod
index e92e9cf0b92d..31cb68c048d9 100644
--- a/raft/go.mod
+++ b/raft/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/raft/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 require (
 	github.com/cockroachdb/datadriven v1.0.2
diff --git a/server/go.mod b/server/go.mod
index 255e5bf9c6ba..31bb70270fd8 100644
--- a/server/go.mod
+++ b/server/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/server/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 require (
 	github.com/coreos/go-semver v0.3.0
diff --git a/tests/go.mod b/tests/go.mod
index 76f3265cdb78..d2044a50baeb 100644
--- a/tests/go.mod
+++ b/tests/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/tests/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 replace (
 	go.etcd.io/etcd/api/v3 => ../api
diff --git a/tools/mod/go.mod b/tools/mod/go.mod
index 8dbd116bb6a3..814ec5f5cc9e 100644
--- a/tools/mod/go.mod
+++ b/tools/mod/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/etcd/tools/v3
 
 go 1.21
 
-toolchain go1.21.12
+toolchain go1.21.13
 
 require (
 	github.com/alexkohler/nakedret v1.0.0