diff --git a/go/toolchains.rst b/go/toolchains.rst
index 812230b00d..b94be5085f 100644
--- a/go/toolchains.rst
+++ b/go/toolchains.rst
@@ -296,7 +296,12 @@ This downloads a Go SDK for use in toolchains.
         name = "go_sdk",
         goos = "linux",
         goarch = "amd64",
-        version = "1.12.5",
+        version = "1.18.1",
+        sdks = {
+            # You can get the expected filenames and checksums from https://go.dev/dl/
+            "linux_amd64": ("go1.18.1.linux-amd64.tar.gz", "b3b815f47ababac13810fc6021eb73d65478e0b2db4b09d348eefad9581a2334"),
+            "darwin_amd64": ("go1.18.1.darwin-amd64.tar.gz", "3703e9a0db1000f18c0c7b524f3d378aac71219b4715a6a4c5683eb639f41a4d"),
+        },
     )
 
     go_rules_dependencies()