diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7c1a99a..bff416d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,7 +18,7 @@
 
 env:
   DESTDIR: ./bin
-  GO_VERSION: 1.25.9
+  GO_VERSION: 1.26.3
 
 jobs:
   validate:
diff --git a/Dockerfile b/Dockerfile
index 7e5d19a..d24b9c4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 
 # GO_VERSION sets the version of the golang base image to use.
 # It must be a valid tag in the docker.io/library/golang image repository.
-ARG GO_VERSION=1.25.9
+ARG GO_VERSION=1.26.3
 
 # BASE_DEBIAN_DISTRO sets the golang base image debian variant to use.
 # It must be a valid variant in the docker.io/library/golang image repository.
diff --git a/deb/Dockerfile b/deb/Dockerfile
index d5bfb02..bd81776 100644
--- a/deb/Dockerfile
+++ b/deb/Dockerfile
@@ -2,7 +2,7 @@
 
 # GO_VERSION sets the version of the golang base image to use.
 # It must be a valid tag in the docker.io/library/golang image repository.
-ARG GO_VERSION=1.25.9
+ARG GO_VERSION=1.26.3
 
 # BASE_DEBIAN_DISTRO sets the golang base image debian variant to use.
 # It must be a valid variant in the docker.io/library/golang image repository.