diff --git a/requirements/Dockerfile.dev b/requirements/Dockerfile.dev
index f18c3b9..0157464 100644
--- a/requirements/Dockerfile.dev
+++ b/requirements/Dockerfile.dev
@@ -7,7 +7,6 @@ FROM ${FROM_IMAGE}:${VERSION_DATE}-py3
 
 # Ubuntu needs noninteractive to be forced
 ENV DEBIAN_FRONTEND noninteractive
-ENV PROJ_LIB="/usr/share/proj"
 ENV CPLUS_INCLUDE_PATH="/usr/include/gdal"
 ENV C_INCLUDE_PATH="/usr/include/gdal"