diff --git a/rig-ubuntu-duckdb4/Dockerfile b/rig-ubuntu-duckdb4/Dockerfile
index a81f643..0e20af3 100644
--- a/rig-ubuntu-duckdb4/Dockerfile
+++ b/rig-ubuntu-duckdb4/Dockerfile
@@ -4,6 +4,6 @@ RUN apt-get install -y python3 ninja-build cmake
 
 RUN rig add 4.0
 
-RUN R-4.0 -q -e 'pak::pak(c("duckdb", "cpp11", "decor", "devtools"), dependencies = TRUE)'
+RUN R-4.0.5 -q -e 'pak::pak(c("duckdb", "cpp11", "decor", "devtools"), dependencies = TRUE)'
 
 ENV DUCKDB_R_DEBUG 1