diff --git a/README.md b/README.md
index 619acce..05084f2 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Eris maintains an up-to-date set of reports for every file in a codebase.
 
 ## Installation
 
-### Ubuntu (20.10)
+### Ubuntu (21.04)
 
     # git clone https://github.com/ahamilton/eris
     # cd eris
diff --git a/make-readme.py b/make-readme.py
index bc84c69..6a93e46 100755
--- a/make-readme.py
+++ b/make-readme.py
@@ -23,7 +23,7 @@ Eris maintains an up-to-date set of reports for every file in a codebase.
 
 ## Installation
 
-### Ubuntu (20.10)
+### Ubuntu (21.04)
 
     # git clone https://github.com/ahamilton/eris
     # cd eris