diff --git a/.gitea/workflows/actions.yaml b/.gitea/workflows/actions.yaml
index d24ae9b..c78a680 100644
--- a/.gitea/workflows/actions.yaml
+++ b/.gitea/workflows/actions.yaml
@@ -10,6 +10,8 @@ jobs:
     name: Build binary (Linux)
     runs-on: ubuntu-latest
     # container: code.spamasaurus.com/djpbessems/act-runner-extended:1.0.0-cth20250815
+    container:
+      options: --sysctl net.ipv4.tcp_mtu_probing=1
     env:
       CGO_ENABLED: 0
     steps:
@@ -36,7 +38,9 @@ jobs:
   build_windows:
     name: Build binary (Windows)
     runs-on: ubuntu-latest
-    container: code.spamasaurus.com/djpbessems/act-runner-extended:1.0.0-cth20250815
+    container:
+      image: code.spamasaurus.com/djpbessems/act-runner-extended:1.0.0-cth20250815
+      options: --sysctl net.ipv4.tcp_mtu_probing=1
     env:
       CGO_ENABLED: 0
     steps: