diff --git a/.github/workflows/docker_build_test.yml b/.github/workflows/docker_build_test.yml
index 15517cce919..afbbe28f1b1 100644
--- a/.github/workflows/docker_build_test.yml
+++ b/.github/workflows/docker_build_test.yml
@@ -34,4 +34,12 @@ jobs:
         run: |
           set -e
           cd cromwell
+          export LANG="en_US.UTF-8"
+          export LC_COLLATE="en_US.UTF-8"
+          export LC_CTYPE="en_US.UTF-8"
+          export LC_MESSAGES="en_US.UTF-8"
+          export LC_MONETARY="en_US.UTF-8"
+          export LC_NUMERIC="en_US.UTF-8"
+          export LC_TIME="en_US.UTF-8"
+          export LC_ALL="en_US.UTF-8"
           sbt -Dproject.isSnapshot=false -Dproject.isRelease=false docker