diff --git a/go.be0 b/go.be0
index 4cf4de0db..2f78ff3a3 100755
--- a/go.be0
+++ b/go.be0
@@ -1,6 +1,6 @@
 #!/usr/bin/env beesh
 
-# BEE_VERSION go-1.21.1-1
+# BEE_VERSION go-1.22.0-0
 
 # see also: https://golang.org/doc/install/source
 
@@ -8,8 +8,11 @@
 #SRCURL[1]="https://redirector.gvt1.com/edgedl/go/go${PKGVERSION}.src.tar.gz"
 SRCURL[0]="https://beehive.molgen.mpg.de/dbf727a4b0e365bf88d97cbfde590016/go1.4-bootstrap-20171003.tar.gz"
 SRCURL[1]="https://beehive.molgen.mpg.de/4476707f05cf6915ec1173038dc357a9/go1.17.13.src.tar.gz"
-#SRCURL[2]="https://go.dev/dl/go1.21.1.src.tar.gz"
-SRCURL[2]="https://beehive.molgen.mpg.de/00ef7b2f4c47990c37dd60bd15fa8c0f/go1.21.1.src.tar.gz"
+#SRCURL[2]="https://go.dev/dl/go1.20.6.src.tar.gz"
+SRCURL[2]="https://beehive.molgen.mpg.de/1dc2d18790cfaede7df1e73a1eff8b7b/go1.20.6.src.tar.gz"
+# SRCURL[3]="https://go.dev/dl/go1.22.0.src.tar.gz"
+SRCURL[3]="https://beehive.molgen.mpg.de/a1918eb3b5daba5b9eb58090944db1bd/go1.22.0.src.tar.gz"
+
 
 # PATCHURL+=()
 
@@ -25,6 +28,9 @@ mee_extract() {
     mkdir ${B}/bootstrap-1.17.13
     bee_extract_do_tar "${1}" ${B}/bootstrap-1.17.13 --strip-components 1
     shift
+    mkdir ${B}/bootstrap-1.20.6
+    bee_extract_do_tar "${1}" ${B}/bootstrap-1.20.6 --strip-components 1
+    shift
     bee_extract "${@}"
 }
 
@@ -58,9 +64,20 @@ mee_build() {
 
     echo "---- bootstrap 1.17.13 built ----"
 
-    cd ${S}/src
+    cd ${B}/bootstrap-1.20.6/src
 
+    # https://github.com/golang/go/issues/16906  "cannot load DWARF output ..."
     export GOROOT_BOOTSTRAP=${B}/bootstrap-1.17.13
+
+    CGO_ENABLED=0 \
+    CFLAGS='-Wno-implicit-fallthrough -Wno-shift-negative-value' \
+    ./make.bash
+
+    echo "---- bootstrap 1.20.6 built ----"
+
+    cd ${S}/src
+
+    export GOROOT_BOOTSTRAP=${B}/bootstrap-1.20.6
     . ./make.bash --no-banner
     $GOTOOLDIR/dist banner