diff --git a/resource-managers/kubernetes/docker/src/main/dockerfiles/spark/bindings/R/Dockerfile b/resource-managers/kubernetes/docker/src/main/dockerfiles/spark/bindings/R/Dockerfile
index aabd04bcd8..03e4210623 100644
--- a/resource-managers/kubernetes/docker/src/main/dockerfiles/spark/bindings/R/Dockerfile
+++ b/resource-managers/kubernetes/docker/src/main/dockerfiles/spark/bindings/R/Dockerfile
@@ -25,14 +25,10 @@ USER 0
 
 RUN mkdir ${SPARK_HOME}/R
 
-# Install R 3.6.3 (http://cloud.r-project.org/bin/linux/debian/)
+# Install R 4.0.4 (http://cloud.r-project.org/bin/linux/debian/)
 RUN \
   apt-get update && \
-  apt install -y gnupg && \
-  echo "deb http://cloud.r-project.org/bin/linux/debian buster-cran35/" >> /etc/apt/sources.list && \
-  apt-key adv --keyserver keyserver.ubuntu.com --recv-key 'E19F5F87128899B192B1A2C2AD5F960A256A04AF' && \
-  apt-get update && \
-  apt install -y -t buster-cran35 r-base r-base-dev && \
+  apt install -y r-base r-base-dev && \
   rm -rf /var/cache/apt/*
 
 COPY R ${SPARK_HOME}/R