diff --git a/Dockerfile.ubuntu22.04 b/Dockerfile.ubuntu22.04
index 4bc5ea9d..bee8b31e 100644
--- a/Dockerfile.ubuntu22.04
+++ b/Dockerfile.ubuntu22.04
@@ -16,8 +16,7 @@ RUN apt-get update && \
     bison \
     flex \
     automake \
-    autotools-dev \
-    valgrind
+    autotools-dev
 
 # Download CUDD
 RUN wget https://raw.githubusercontent.com/davidkebo/cudd/main/cudd_versions/cudd-3.0.0.tar.gz && \
diff --git a/README.md b/README.md
index 328559e5..32082042 100644
--- a/README.md
+++ b/README.md
@@ -190,7 +190,7 @@ following command builds a Docker image.
 
 ```
 cd OpenSTA
-docker build --file Dockerfile.ubuntu22.04 --tag OpenSTA .
+docker build --file Dockerfile.ubuntu22.04 --tag opensta .
 ```
 
 To run a docker container using the OpenSTA image, use the -v option
@@ -198,7 +198,7 @@ to docker to mount direcories with data to use and -i to run
 interactively.
 
 ```
-docker run -i -v $HOME:/data OpenSTA
+docker run -i -v $HOME:/data opensta
 ```
 
 ## Build on Macos/Darwin