diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index eb3e0984cebf6f6ab4f60a58d6bf4d53867150b4..acc4c47651a9c2c3c5dda9bc8eaa11f7a4a1dd28 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -63,7 +63,7 @@ build:
       - R_VERSION: ["latest"]
         # R_VERSION: ["3.6.3", "4.2.3", "latest"]
         SHINY_SERVER_VERSION: ["latest"]
-        LANGUAGE: ["R"]
+        LANGUAGE: ["r"]
       - R_VERSION: ["latest"]
         # R_VERSION: ["3.6.3", "4.2.3", "latest"]
         SHINY_SERVER_VERSION: ["latest"]
diff --git a/Dockerfile.R b/Dockerfile.r
similarity index 100%
rename from Dockerfile.R
rename to Dockerfile.r