diff --git a/job-cfg/rebootstrap.yaml.py b/job-cfg/rebootstrap.yaml.py
index d2e8efca2fef0be526deabfa912ba4f7030583bc..508c0c72a43c86b8ec0be25e6544a9e6d6e8dec4 100755
--- a/job-cfg/rebootstrap.yaml.py
+++ b/job-cfg/rebootstrap.yaml.py
@@ -36,8 +36,8 @@ release_architectures = """
 
 architectures += mono_architectures
 
-gcc_versions = ("8", "9")
-diffoscope_gcc_versions = ("8",)
+gcc_versions = ("9",)
+diffoscope_gcc_versions = ("9",)
 
 # repository url doubly maintained in bin/rebootstrap.sh
 print("""