diff --git a/lfric_env.def b/lfric_env.def
index b6390bd..6d2f26f 100755
--- a/lfric_env.def
+++ b/lfric_env.def
@@ -1,5 +1,5 @@
 Bootstrap: docker
-From: fedora:latest
+From: fedora:33
 
 %files
 files/mk_arch_files_intel.sh /opt