diff --git a/Dockerfile-Unit-Test b/Dockerfile-Unit-Test
index 4ebb3a7..e19c08a 100644
--- a/Dockerfile-Unit-Test
+++ b/Dockerfile-Unit-Test
@@ -14,7 +14,7 @@
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
 # ==================================================================================
-FROM python:3.7-alpine
+FROM python:3.8-alpine
 
 # sdl uses hiredis which needs gcc
 RUN apk update && apk add gcc musl-dev
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 3fdad34..8491cf4 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -14,6 +14,14 @@
    :depth: 3
    :local:
 
+[0.4.1] - 3/17/2020
+-------------------
+::
+
+    * Switch tox to use py38
+    * switch to latest builders
+
+
 [0.4.0] - 3/13/2020
 -------------------
 ::
diff --git a/examples/Dockerfile-Ping b/examples/Dockerfile-Ping
index 38dd323..5aef402 100644
--- a/examples/Dockerfile-Ping
+++ b/examples/Dockerfile-Ping
@@ -14,13 +14,13 @@
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
 # ==================================================================================
-FROM python:3.7-alpine
+FROM python:3.8-alpine
 
 # RMR setup
 RUN mkdir -p /opt/route/
 COPY test_route.rt /opt/route/test_route.rt
-COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3-go:1-rmr1.13.1 /usr/local/lib64/libnng.so /usr/local/lib64/libnng.so
-COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3-go:1-rmr1.13.1 /usr/local/lib64/librmr_nng.so /usr/local/lib64/librmr_nng.so
+COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3-go:2-rmr1.13.1 /usr/local/lib64/libnng.so /usr/local/lib64/libnng.so
+COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3-go:2-rmr1.13.1 /usr/local/lib64/librmr_nng.so /usr/local/lib64/librmr_nng.so
 ENV LD_LIBRARY_PATH /usr/local/lib/:/usr/local/lib64
 ENV RMR_SEED_RT /opt/route/test_route.rt
 
diff --git a/examples/Dockerfile-Pong b/examples/Dockerfile-Pong
index b2fd65d..462a717 100644
--- a/examples/Dockerfile-Pong
+++ b/examples/Dockerfile-Pong
@@ -14,13 +14,13 @@
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
 # ==================================================================================
-FROM python:3.7-alpine
+FROM python:3.8-alpine
 
 # RMR setup
 RUN mkdir -p /opt/route/
 COPY test_route.rt /opt/route/test_route.rt
-COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3-go:1-rmr1.13.1 /usr/local/lib64/libnng.so /usr/local/lib64/libnng.so
-COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3-go:1-rmr1.13.1 /usr/local/lib64/librmr_nng.so /usr/local/lib64/librmr_nng.so
+COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3-go:2-rmr1.13.1 /usr/local/lib64/libnng.so /usr/local/lib64/libnng.so
+COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3-go:2-rmr1.13.1 /usr/local/lib64/librmr_nng.so /usr/local/lib64/librmr_nng.so
 ENV LD_LIBRARY_PATH /usr/local/lib/:/usr/local/lib64
 ENV RMR_SEED_RT /opt/route/test_route.rt
 
diff --git a/setup.py b/setup.py
index 89872cd..8f57312 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@
 
 setup(
     name="ricxappframe",
-    version="0.4.0",
+    version="0.4.1",
     packages=find_packages(exclude=["tests.*", "tests"]),
     author="Tommy Carpenter",
     description="Xapp framework for python",
@@ -42,7 +42,6 @@
         "Development Status :: 4 - Beta",
         "Intended Audience :: Telecommunications Industry",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
         "License :: OSI Approved :: Apache Software License",
         "Operating System :: POSIX :: Linux",
         "Topic :: Communications",
diff --git a/tox.ini b/tox.ini
index d7290d3..bfcc647 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,7 +19,7 @@
 minversion = 2.0
 
 [testenv:code]
-basepython = python3.7
+basepython = python3.8
 deps=
     pytest
     coverage
@@ -34,7 +34,7 @@
     coverage xml -i
 
 [testenv:flake8]
-basepython = python3.7
+basepython = python3.8
 skip_install = true
 deps = flake8
 commands = flake8 setup.py ricxappframe tests
@@ -46,7 +46,7 @@
 [testenv:docs]
 whitelist_externals = echo
 skipsdist = true
-basepython = python3.7
+basepython = python3.8
 deps =
     sphinx
     sphinx-rtd-theme
@@ -59,7 +59,7 @@
 
 [testenv:docs-linkcheck]
 skipsdist = true
-basepython = python3.7
+basepython = python3.8
 deps = sphinx
        sphinx-rtd-theme
        sphinxcontrib-httpdomain