diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0c0dca4b8..502ae34ff 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -132,7 +132,8 @@ jobs:
       - run: go install github.com/cpuguy83/go-md2man/v2@v2.0.2
       - run: make man
 
-  # Make sure binaries compile with other platforms
+  # Make sure binaries compile with other minor platforms.
+  # Well-known architectures are covered in release.yml.
   crossbuild:
     name: Crossbuild Binaries
     needs: [project, linters, protos, man]
@@ -142,20 +143,12 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - goos: linux
-            goarch: arm64
           - goos: linux
             goarch: arm
             goarm: "7"
           - goos: linux
             goarch: arm
             goarm: "5"
-          - goos: linux
-            goarch: ppc64le
-          - goos: linux
-            goarch: riscv64
-          - goos: linux
-            goarch: s390x
           - goos: freebsd
             goarch: amd64
           - goos: freebsd
@@ -189,26 +182,6 @@ jobs:
             echo "CGO_ENABLED=1" >> $GITHUB_ENV
             echo "CC=arm-linux-gnueabihf-gcc" >> $GITHUB_ENV
             ;;
-          linux/arm64)
-            packages+=" crossbuild-essential-arm64"
-            echo "CGO_ENABLED=1" >> $GITHUB_ENV
-            echo "CC=aarch64-linux-gnu-gcc" >> $GITHUB_ENV
-            ;;
-          linux/ppc64le)
-            packages+=" crossbuild-essential-ppc64el"
-            echo "CGO_ENABLED=1" >> $GITHUB_ENV
-            echo "CC=powerpc64le-linux-gnu-gcc" >> $GITHUB_ENV
-            ;;
-          linux/riscv64)
-            packages+=" crossbuild-essential-riscv64"
-            echo "CGO_ENABLED=1" >> $GITHUB_ENV
-            echo "CC=riscv64-linux-gnu-gcc" >> $GITHUB_ENV
-            ;;
-          linux/s390x)
-            packages+=" crossbuild-essential-s390x"
-            echo "CGO_ENABLED=1" >> $GITHUB_ENV
-            echo "CC=s390x-linux-gnu-gcc" >> $GITHUB_ENV
-            ;;
           windows/arm/v7)
             echo "CGO_ENABLED=0" >> $GITHUB_ENV
             ;;