diff --git a/sonic-slave/Dockerfile b/sonic-slave/Dockerfile
index 4e1bc644556b..d74c9adfebe5 100644
--- a/sonic-slave/Dockerfile
+++ b/sonic-slave/Dockerfile
@@ -164,10 +164,11 @@ RUN apt-get update && apt-get install -y \
         cppcheck \
         clang \
         pylint \
-        python-pytest \
         gcovr \
         python-pytest=2.6.3* \
+        python3-pytest=2.6.3* \
         python-pytest-cov \
+        python3-pytest-cov \
         python-parse \
 # For snmpd
         libmysqlclient-dev \
@@ -196,6 +197,8 @@ RUN apt-get update && apt-get install -y \
         python-netaddr \
         python-ipaddr \
         python-yaml \
+# For sonic utilities
+        python3-netaddr \
 # For lockfile
         procmail \
 # For gtest