diff --git a/Dockerfile b/Dockerfile
index b0a3a53..64cf2e1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ WORKDIR /opt/test-runner
 COPY project/ project/
 COPY src/ src/
 COPY build.sbt build.sbt
-RUN sbt compile
+RUN sbt assembly
 
 COPY . .
 
diff --git a/bin/run.sh b/bin/run.sh
index ae0e6a3..25ffc8d 100755
--- a/bin/run.sh
+++ b/bin/run.sh
@@ -54,6 +54,6 @@ mv -f "${original_tests_file}" "${tests_file}"
 popd > /dev/null
 
 # Write the results.json file
-sbt "set offline := true" "run ${build_log_file} ${tests_results_file} ${results_file}" > "${runner_log_file}"
+java -jar target/scala-2.12/TestRunner-assembly-0.1.0-SNAPSHOT.jar "${build_log_file}" "${tests_results_file}" "${results_file}" > "${runner_log_file}"
 
 echo "${slug}: done"
diff --git a/project/plugins.sbt b/project/plugins.sbt
new file mode 100644
index 0000000..72477a2
--- /dev/null
+++ b/project/plugins.sbt
@@ -0,0 +1 @@
+addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.15.0")