diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b4ab25b..5053c1c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -43,7 +43,14 @@ jobs:
 
       - name: Write Artifact Manifest
         run: |
-          bash hack/generate_versions.sh > manifest.json
+          artifacts=$(${GITHUB_WORKSPACE}/bin/bazel query //src/... | grep +publish)
+          publishedServices=${artifacts//$'//src/'/}
+          publishedServices=${publishedServices//$':+publish'/}
+          manifestJSON='{"services": {}}'
+          for svc in $publishedServices; do 
+            manifestJSON=$(echo $manifestJSON | jq ".services+={\"$svc\":\"$(cat bazel-bin/src/$svc/+publish.digest)\"}")
+          done
+          echo $manifestJSON > manifest.json
 
       - name: Upload Artifact Manifest
         uses: actions/upload-artifact@v2
diff --git a/hack/generate_versions.sh b/hack/generate_versions.sh
deleted file mode 100644
index 902bcef..0000000
--- a/hack/generate_versions.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/bin/bash
-
-BAZEL=${BAZEL:-bazel}
-artifacts=$($BAZEL query //src/... 2>/dev/null | grep +publish)
-publishedServices=${artifacts//$'//src/'/}
-publishedServices=${publishedServices//$':+publish'/}
-
-artifactList=$'{ "services": {} }'
-
-getSha() {
-  service=$1
-  cat ./bazel-bin/src/$service/+publish.digest
-}
-
-addShaToServiceList() {
-  service=$1
-  shaSum=$2
-  artifactList=$(echo $artifactList | jq ".services+={\"${service}\":\"${shaSum}\"}")
-}
-
-for service in $publishedServices; do
-  shaSum=$(getSha $service)
-  test $shaSum && addShaToServiceList $service $shaSum
-done
-
-echo $artifactList | jq
\ No newline at end of file