diff --git a/docker/bldr-alpine3/Dockerfile b/docker/bldr-alpine3/Dockerfile
index 6b0fd3d..499e167 100644
--- a/docker/bldr-alpine3/Dockerfile
+++ b/docker/bldr-alpine3/Dockerfile
@@ -50,10 +50,13 @@
     && cp /tmp/autoconf-archive/m4/* /usr/share/aclocal \
     && rm -rf /tmp/autoconf-archive
 
-# NNG, version is pinned
+# NNG repo is not frequently tagged so it's pinned to a commit hash.
+# This commit provides fix to the proxy-reconnect
+# bug that we identified:  https://github.com/nanomsg/nng/issues/970
 RUN cd /tmp \
-    && git clone --branch v1.1.1 https://github.com/nanomsg/nng.git \
+    && git clone https://github.com/nanomsg/nng.git \
     && cd nng \
+    && git checkout e618abf8f3db2a94269a79c8901a51148d48fcc2 \
     && mkdir build \
     && cd build \
     && cmake -DBUILD_SHARED_LIBS=1 -G Ninja .. \
diff --git a/docker/bldr-alpine3/container-tag.yaml b/docker/bldr-alpine3/container-tag.yaml
index c51d3ac..d6ac6d8 100644
--- a/docker/bldr-alpine3/container-tag.yaml
+++ b/docker/bldr-alpine3/container-tag.yaml
@@ -1,4 +1,4 @@
 # Not feasible to show all the software versions
 # here so just use a counter plus the base image
 ---
-tag: 5-a3.9
+tag: 6-a3.9-nng
diff --git a/docker/bldr-debian-python/Dockerfile b/docker/bldr-debian-python/Dockerfile
index c7c5811..1d9a23b 100644
--- a/docker/bldr-debian-python/Dockerfile
+++ b/docker/bldr-debian-python/Dockerfile
@@ -35,8 +35,12 @@
     && chmod +x ninja \
     && mv ninja /usr/local/bin
 
-RUN git clone --branch v1.1.1 https://github.com/nanomsg/nng.git \
+# NNG repo is not frequently tagged so it's pinned to a commit hash.
+# This commit provides fix to the proxy-reconnect
+# bug that we identified:  https://github.com/nanomsg/nng/issues/970
+RUN git clone https://github.com/nanomsg/nng.git \
     && cd nng \
+    && git checkout e618abf8f3db2a94269a79c8901a51148d48fcc2 \
     && mkdir build \
     && cd build \
     && cmake -DBUILD_SHARED_LIBS=1 -G Ninja .. \
diff --git a/docker/bldr-debian-python/container-tag.yaml b/docker/bldr-debian-python/container-tag.yaml
index 91a8467..2862542 100755
--- a/docker/bldr-debian-python/container-tag.yaml
+++ b/docker/bldr-debian-python/container-tag.yaml
@@ -1,4 +1,4 @@
 # Not feasible to show all the software versions
 # here so just use a counter plus the base image
 ---
-tag: 3-py3.7-nng1.1.1
+tag: 4-py3.7-nng
diff --git a/docker/bldr-ubuntu16-c-go/Dockerfile b/docker/bldr-ubuntu16-c-go/Dockerfile
index 0212d7d..60007c4 100644
--- a/docker/bldr-ubuntu16-c-go/Dockerfile
+++ b/docker/bldr-ubuntu16-c-go/Dockerfile
@@ -15,13 +15,6 @@
 # limitations under the License.
 
 # Builder image with superset of CI tools for RIC components
-# Uses Ubuntu 16.04 base then adds:
-# Standard apt packages including gcc and g++ 5.4
-# Cmake 3.14.5 from binary distro to /usr/local/bin
-# Golang 1.12 from binary distro to /usr/local/go
-# Ninja 1.9 from binary distro to /usr/local/bin
-# Nanomsg Next Gen v1.1.1 from source distro
-# Boost 1.69 from source distro
 
 FROM nexus3.o-ran-sc.org:10001/ubuntu:16.04
 
@@ -64,8 +57,12 @@
     && chmod +x ninja \
     && mv ninja /usr/local/bin
 
-RUN git clone --branch v1.1.1 https://github.com/nanomsg/nng.git \
+# NNG repo is not frequently tagged so it's pinned to a commit hash.
+# This commit provides fix to the proxy-reconnect
+# bug that we identified:  https://github.com/nanomsg/nng/issues/970
+RUN git clone https://github.com/nanomsg/nng.git \
     && cd nng \
+    && git checkout e618abf8f3db2a94269a79c8901a51148d48fcc2 \
     && mkdir build \
     && cd build \
     && cmake -DBUILD_SHARED_LIBS=1 -G Ninja .. \
diff --git a/docker/bldr-ubuntu16-c-go/container-tag.yaml b/docker/bldr-ubuntu16-c-go/container-tag.yaml
index e44a9fe..0723c4a 100644
--- a/docker/bldr-ubuntu16-c-go/container-tag.yaml
+++ b/docker/bldr-ubuntu16-c-go/container-tag.yaml
@@ -1,4 +1,4 @@
 # Not feasible to show all the software versions
 # here so just use a counter plus the base image
 ---
-tag: 1-u16.04-nng1.1.1
+tag: 2-u16.04-nng
diff --git a/docker/bldr-ubuntu18-c-go/Dockerfile b/docker/bldr-ubuntu18-c-go/Dockerfile
index c8421c9..f7f23b1 100644
--- a/docker/bldr-ubuntu18-c-go/Dockerfile
+++ b/docker/bldr-ubuntu18-c-go/Dockerfile
@@ -15,13 +15,6 @@
 # limitations under the License.
 
 # Builder image with superset of CI tools for RIC components
-# Uses Ubuntu 18.04 base then adds:
-# Standard apt packages including gcc and g++ 5.4
-# Cmake 3.14.5 from binary distro to /usr/local/bin
-# Golang 1.12 from binary distro to /usr/local/go
-# Ninja 1.9 from binary distro to /usr/local/bin
-# Nanomsg Next Gen v1.1.1 from source distro
-# Boost 1.69 from source distro
 
 FROM nexus3.o-ran-sc.org:10001/ubuntu:18.04
 
@@ -64,8 +57,12 @@
     && chmod +x ninja \
     && mv ninja /usr/local/bin
 
-RUN git clone --branch v1.1.1 https://github.com/nanomsg/nng.git \
+# NNG repo is not frequently tagged so it's pinned to a commit hash.
+# This commit provides fix to the proxy-reconnect
+# bug that we identified:  https://github.com/nanomsg/nng/issues/970
+RUN git clone https://github.com/nanomsg/nng.git \
     && cd nng \
+    && git checkout e618abf8f3db2a94269a79c8901a51148d48fcc2 \
     && mkdir build \
     && cd build \
     && cmake -DBUILD_SHARED_LIBS=1 -G Ninja .. \
diff --git a/docker/bldr-ubuntu18-c-go/container-tag.yaml b/docker/bldr-ubuntu18-c-go/container-tag.yaml
index b42a0da..15d012e 100644
--- a/docker/bldr-ubuntu18-c-go/container-tag.yaml
+++ b/docker/bldr-ubuntu18-c-go/container-tag.yaml
@@ -1,4 +1,4 @@
 # Not feasible to show all the software versions
 # here so just use a counter plus the base image
 ---
-tag: 1-u18.04-nng1.1.1
+tag: 2-u18.04-nng