diff --git a/.env b/.env
index 4c0ad80acb..ba14e8ed12 100644
--- a/.env
+++ b/.env
@@ -33,7 +33,7 @@ MANYLINUX=2_28
 MAVEN=3.9.10
 PLATFORM=linux/amd64
 PYTHON=3.13
-GO=1.26.6
+GO=1.26.8
 ARROW_MAJOR_VERSION=18
 DOTNET=10.0
 
diff --git a/go/adbc/go.mod b/go/adbc/go.mod
index a4c2b27388..aaf68d5c10 100644
--- a/go/adbc/go.mod
+++ b/go/adbc/go.mod
@@ -17,11 +17,10 @@
 
 module github.com/apache/arrow-adbc/go/adbc
 
-go 1.25.0
+go 1.26
 
-// Only require 1.25, but prefer 1.26 to build to pick up latest CVE fixes in
-// Go itself.
-toolchain go1.26.6
+// Require the latest Go 1.26 to build to pick up CVE fixes in Go itself.
+toolchain go1.26.8
 
 require (
 	github.com/apache/arrow-go/v18 v18.7.0