diff --git a/buildspec.yml b/buildspec.yml
index 374dda2c..a9ad5342 100644
--- a/buildspec.yml
+++ b/buildspec.yml
@@ -6,15 +6,18 @@ phases:
       docker: 19
   pre_build:
     commands:
+
       - echo Logging in to Amazon ECR...
       - aws --version
       - $(aws ecr get-login --region $AWS_DEFAULT_REGION --no-include-email)
       - REPOSITORY_URI=679918342773.dkr.ecr.us-east-1.amazonaws.com/integreat
       - COMMIT_HASH=$(echo $CODEBUILD_RESOLVED_SOURCE_VERSION | cut -c 1-7)
       - IMAGE_TAG=${COMMIT_HASH:=latest}
+      - wget https://raw.github.com/technomancy/leiningen/stable/bin/lein
+      - chmod +x lein
   build:
     commands:
-      - lein build
+      - ./lein build
       - echo Build started on `date`
       - echo Building the Docker image...
       - docker build -t $REPOSITORY_URI:latest .