Use alpine:3.9 in continuous build for now

3.10 seems to contain a regression in libcurl that occasionally
causes fetch errors.

1 files changed, 1 insertions, 1 deletions

diff --git a/.build.yml b/.build.yml
index a5355577..276fc3d8 100644
--- a/.build.yml
+++ b/.build.yml
@@ -1,4 +1,4 @@
-image: alpine/edge
+image: alpine/3.9
 packages:
 - bison
 - libarchive-tools