diff --git a/MODULE.bazel b/MODULE.bazel
index e6f1ddb893dd..9f9a2125da92 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -276,7 +276,7 @@ use_repo(
 )
 
 go_sdk = use_extension("@rules_go//go:extensions.bzl", "go_sdk")
-go_sdk.download(version = "1.26.4")
+go_sdk.download(version = "1.26.5")
 
 go_deps = use_extension("@gazelle//:extensions.bzl", "go_deps")
 go_deps.from_file(go_mod = "//go/extractor:go.mod")
diff --git a/go/actions/test/action.yml b/go/actions/test/action.yml
index 3cc3334d39ed..d4c391cd0103 100644
--- a/go/actions/test/action.yml
+++ b/go/actions/test/action.yml
@@ -4,7 +4,7 @@ inputs:
   go-test-version:
     description: Which Go version to use for running the tests
     required: false
-    default: "~1.26.4"
+    default: "~1.26.5"
   run-code-checks:
     description: Whether to run formatting, code and qhelp generation checks
     required: false
diff --git a/go/extractor/go.mod b/go/extractor/go.mod
index e121c4a98a8a..b45815abbc95 100644
--- a/go/extractor/go.mod
+++ b/go/extractor/go.mod
@@ -2,7 +2,7 @@ module github.com/github/codeql-go/extractor
 
 go 1.26
 
-toolchain go1.26.4
+toolchain go1.26.5
 
 // when updating this, run
 //    bazel run @rules_go//go -- mod tidy