diff --git a/.github/actions/go-test-setup/action.yml b/.github/actions/go-test-setup/action.yml
new file mode 100644
index 0000000000..fad3c9e38e
--- /dev/null
+++ b/.github/actions/go-test-setup/action.yml
@@ -0,0 +1,7 @@
+runs:
+  using: "composite"
+  steps:
+    - name: increase the UDP receive buffer size # see https://github.com/lucas-clemente/quic-go/wiki/UDP-Receive-Buffer-Size
+      shell: bash
+      run: sysctl -w net.core.rmem_max=2500000
+      if: ${{ matrix.os == 'ubuntu' }}