diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b59e29b22..732a2656d 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -34,7 +34,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v6
         with:
-          go-version: '1.26.3'
+          go-version: '1.26.4'
 
       - name: Build microVM artifacts (lb-agent + kernel + initramfs)
         run: cd spinifex && make build-microvm-image
diff --git a/Makefile b/Makefile
index 484acfdd4..f7764d23d 100644
--- a/Makefile
+++ b/Makefile
@@ -209,9 +209,9 @@ install-system:
 		ovn-central ovn-host openvswitch-switch dhcpcd-base
 
 install-go:
-	@echo -e "\n....Installing Go 1.26.3 for $(ARCH) ($(GO_ARCH))...."
+	@echo -e "\n....Installing Go 1.26.4 for $(ARCH) ($(GO_ARCH))...."
 	@if [ ! -d "/usr/local/go" ]; then \
-		curl -L https://go.dev/dl/go1.26.3.linux-$(GO_ARCH).tar.gz | tar -C /usr/local -xz; \
+		curl -L https://go.dev/dl/go1.26.4.linux-$(GO_ARCH).tar.gz | tar -C /usr/local -xz; \
 	else \
 		echo "Go already installed in /usr/local/go"; \
 	fi
diff --git a/docs/getting-started/install-source/README.md b/docs/getting-started/install-source/README.md
index f8725fdc7..564efa5c7 100644
--- a/docs/getting-started/install-source/README.md
+++ b/docs/getting-started/install-source/README.md
@@ -32,7 +32,7 @@ This guide builds Spinifex from source. For production deployments, the [binary
 **Requirements:**
 
 - Ubuntu 26.04 / Debian 13
-- Go 1.26.3+
+- Go 1.26.4+
 - GCC, make, pkg-config
 - QEMU/KVM, OVN/Open vSwitch, AWS CLI v2, dhcpcd-base
 
diff --git a/go.mod b/go.mod
index af0e90769..01e1db3fe 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/mulgadc/spinifex
 
-go 1.26.3
+go 1.26.4
 
 require (
 	github.com/aws/aws-sdk-go v1.55.8
diff --git a/scripts/iac/proxmox-template/README.md b/scripts/iac/proxmox-template/README.md
index 033332586..fa9f0ddf8 100644
--- a/scripts/iac/proxmox-template/README.md
+++ b/scripts/iac/proxmox-template/README.md
@@ -7,7 +7,7 @@ Builds a Proxmox VM template with all Spinifex dependencies pre-installed. Cloni
 | Component | Details |
 |---|---|
 | System packages | QEMU, nbdkit, libvirt, gcc, jq, curl, etc. (`make install-system`) |
-| Go | 1.26.3 (`make install-go`) |
+| Go | 1.26.4 (`make install-go`) |
 | AWS CLI | v2 (`make install-aws`) |
 | Repositories | spinifex, viperblock, predastore (with `go.work` configured) |
 | Module cache | `go mod download` completed for all repos |
diff --git a/scripts/workload-performance.sh b/scripts/workload-performance.sh
index c84f68aaf..015e8e7ea 100644
--- a/scripts/workload-performance.sh
+++ b/scripts/workload-performance.sh
@@ -5,8 +5,8 @@
 sudo apt update
 sudo apt install -y make gcc git
 
-wget https://go.dev/dl/go1.26.3.linux-amd64.tar.gz
-sudo tar -C /usr/local -xzf go1.26.3.linux-amd64.tar.gz
+wget https://go.dev/dl/go1.26.4.linux-amd64.tar.gz
+sudo tar -C /usr/local -xzf go1.26.4.linux-amd64.tar.gz
 
 echo "export PATH=$PATH:/usr/local/go/bin" >> $HOME/.bashrc
 source $HOME/.bashrc