diff --git a/.github/workflows/builds_and_tests.yml b/.github/workflows/builds_and_tests.yml
index da75b4d8..25c0bde0 100644
--- a/.github/workflows/builds_and_tests.yml
+++ b/.github/workflows/builds_and_tests.yml
@@ -167,5 +167,7 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+      - name: Prepare docker image
+        run: cd builders && make docker-image-alpine
       - name: Build static library and test
         run: make test-alpine
diff --git a/Makefile b/Makefile
index 807abaec..4bec0f91 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,9 @@
 .PHONY: all build build-rust build-go test
 
 # Builds the Rust library libwasmvm
-BUILDERS_PREFIX := cosmwasm/go-ext-builder:0014
+BUILDERS_PREFIX := line/wasmvm-builder
 # Contains a full Go dev environment in order to run Go tests on the built library
-ALPINE_TESTER := cosmwasm/go-ext-builder:0014-alpine
+ALPINE_TESTER := line/wasmvm-builder-alpine
 
 USER_ID := $(shell id -u)
 USER_GROUP = $(shell id -g)
diff --git a/internal/api/libwasmvm.aarch64.so b/internal/api/libwasmvm.aarch64.so
new file mode 100755
index 00000000..7b4263e4
Binary files /dev/null and b/internal/api/libwasmvm.aarch64.so differ
diff --git a/internal/api/libwasmvm.dylib b/internal/api/libwasmvm.dylib
new file mode 100755
index 00000000..0f7269dc
Binary files /dev/null and b/internal/api/libwasmvm.dylib differ
diff --git a/internal/api/libwasmvm.x86_64.so b/internal/api/libwasmvm.x86_64.so
new file mode 100755
index 00000000..a2a50787
Binary files /dev/null and b/internal/api/libwasmvm.x86_64.so differ