diff --git a/.builds/alpine-edge.yml b/.builds/alpine-edge.yml
index c6424a6..ad9b8af 100644
--- a/.builds/alpine-edge.yml
+++ b/.builds/alpine-edge.yml
@@ -24,3 +24,7 @@ tasks:
   - test: |
       cd aerc
       go test ./...
+  - ancient-go-version: |
+      go install golang.org/dl/go1.13@latest
+      ~/go/bin/go1.13 download
+      make GO=~/go/bin/go1.13
diff --git a/.builds/debian-stable.yml b/.builds/debian-stable.yml
deleted file mode 100644
index 6523519..0000000
--- a/.builds/debian-stable.yml
+++ /dev/null
@@ -1,23 +0,0 @@
----
-image: debian/stable
-packages:
-  - golang
-  - gnupg2
-  - libnotmuch-dev
-  - scdoc
-sources:
-  - "https://git.sr.ht/~rjarry/aerc"
-environment:
-  DESTDIR: ./out
-  GOFLAGS: "-tags=notmuch"
-tasks:
-  - build: |
-      cd aerc
-      make
-  - install: |
-      cd aerc
-      make install
-      make checkinstall
-  - test: |
-      cd aerc
-      go test ./...
diff --git a/.builds/fedora-latest.yml b/.builds/fedora-latest.yml
deleted file mode 100644
index cb3fdbc..0000000
--- a/.builds/fedora-latest.yml
+++ /dev/null
@@ -1,23 +0,0 @@
----
-image: fedora/latest
-packages:
-  - golang
-  - gnupg2
-  - notmuch-devel
-  - scdoc
-sources:
-  - "https://git.sr.ht/~rjarry/aerc"
-environment:
-  DESTDIR: ./out
-  GOFLAGS: "-tags=notmuch"
-tasks:
-  - build: |
-      cd aerc
-      make
-  - install: |
-      cd aerc
-      make install
-      make checkinstall
-  - test: |
-      cd aerc
-      go test ./...
diff --git a/.builds/openbsd.yml b/.builds/openbsd.yml
index 59cc654..811fbf7 100644
--- a/.builds/openbsd.yml
+++ b/.builds/openbsd.yml
@@ -16,6 +16,3 @@ tasks:
       cd aerc
       make install
       make checkinstall
-  - test: |
-      cd aerc
-      go test ./...