diff --git a/go.mod b/go.mod
index 2e00ebd..f037c80 100644
--- a/go.mod
+++ b/go.mod
@@ -2,6 +2,6 @@ module github.com/giantswarm/microerror
 
 go 1.21
 
-toolchain go1.26.4
+toolchain go1.26.5
 
 require github.com/google/go-cmp v0.7.0