diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index d5266fae1c..75b416d0f7 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -73,7 +73,8 @@ RUN pip3 install -U \
     # Linting tools
     pep8==1.7.1 \
     pep8-naming==0.6.1 \
-    flake8==3.8.4
+    flake8==3.8.4 \
+    Cython==0.29.36
 
 
 # install rake
diff --git a/.github/workflows/build/Dockerfile.ubuntu-2004 b/.github/workflows/build/Dockerfile.ubuntu-2004
index 25fb6888d0..75a959f65f 100644
--- a/.github/workflows/build/Dockerfile.ubuntu-2004
+++ b/.github/workflows/build/Dockerfile.ubuntu-2004
@@ -34,6 +34,6 @@ RUN echo "deb https://hyperledger.jfrog.io/artifactory/indy focal dev"  >> /etc/
 RUN apt-get update -y && apt-get install -y \
     # Python
     python3-pip \
-    rubygems &&\
-    gem install --no-document fpm -v 1.14.2
-
+    rubygems && \
+    gem install --no-document fpm -v 1.14.2 && \
+    pip3 install Cython==0.29.36
\ No newline at end of file
diff --git a/build-scripts/ubuntu-2004/build-3rd-parties.sh b/build-scripts/ubuntu-2004/build-3rd-parties.sh
index 93dd69c5a8..a71388893f 100755
--- a/build-scripts/ubuntu-2004/build-3rd-parties.sh
+++ b/build-scripts/ubuntu-2004/build-3rd-parties.sh
@@ -78,7 +78,7 @@ function build_from_pypi {
             --before-remove ${PREREM_TMP} \
             --package ${OUTPUT_PATH} \
             ${PACKAGE_NAME}${PACKAGE_VERSION}
-            
+
             # --python-pip "$(which pip)" \
         # ERROR:  download_if_necessary': Unexpected directory layout after easy_install. Maybe file a bug? The directory is /tmp/package-python-build-c42d23109dcca1e98d9f430a04fe79a815f10d8ed7a719633aa969424f94 (RuntimeError)
     fi
@@ -103,27 +103,27 @@ build_rocksdb_deb 5.8.8
 build_from_pypi pyzmq 22.3.0 --zmq=bundled
 
 ##### install_requires
-build_from_pypi base58 
+build_from_pypi base58
 ### Needs to be pinned to 3.10.1 because from v4.0.0 the package name ends in python3-importlib-metadata_0.0.0_amd64.deb
 ### https://github.com/hyperledger/indy-plenum/runs/4166593170?check_suite_focus=true#step:5:5304
 build_from_pypi importlib-metadata 3.10.1
-build_from_pypi ioflo 
+build_from_pypi ioflo
 build_from_pypi jsonpickle
-build_from_pypi leveldb 
+build_from_pypi leveldb
 build_from_pypi libnacl 1.6.1
 build_from_pypi msgpack-python
 build_from_pypi orderedset
 build_from_pypi packaging 21.3
-build_from_pypi portalocker
+build_from_pypi portalocker 2.7.0
 build_from_pypi prompt-toolkit 3.0.18
-build_from_pypi psutil 
+build_from_pypi psutil
 build_from_pypi pympler 0.8
 build_from_pypi python-dateutil
 build_from_pypi python-rocksdb
 build_from_pypi python-ursa 0.1.1
 build_from_pypi rlp 0.6.0
 build_from_pypi semver 2.13.0
-build_from_pypi sha3 
-build_from_pypi six 
+build_from_pypi sha3
+build_from_pypi six
 build_from_pypi sortedcontainers 1.5.7
 build_from_pypi ujson 1.33
diff --git a/dev-setup/ubuntu/ubuntu-2004/SetupVMTest.txt b/dev-setup/ubuntu/ubuntu-2004/SetupVMTest.txt
index 0851ec8cf3..e09b761922 100644
--- a/dev-setup/ubuntu/ubuntu-2004/SetupVMTest.txt
+++ b/dev-setup/ubuntu/ubuntu-2004/SetupVMTest.txt
@@ -57,7 +57,7 @@
             packaging==20.9 \
             pip==9.0.3 \
             pluggy==0.13.1 \
-            portalocker==2.2.1 \
+            portalocker==2.7.0 \
             prompt-toolkit==3.0.16 \
             psutil==5.6.6 \
             py==1.10.0 \
diff --git a/plenum/__version__.json b/plenum/__version__.json
index cd0eff0a5a..9aeee5109b 100644
--- a/plenum/__version__.json
+++ b/plenum/__version__.json
@@ -1 +1 @@
-[1, 13, 1, "rc", 4]
+[1, 13, 1, "", ""]
diff --git a/setup.py b/setup.py
index 726fffe82e..af9246306a 100644
--- a/setup.py
+++ b/setup.py
@@ -113,8 +113,8 @@ def run(self):
                         'orderedset',
                         # 'packaging==20.9',
                         'packaging',
-                        # 'portalocker==2.2.1',
-                        'portalocker',
+                        # Pinned because 3rd party dependency build fails with portalocker > 2.7.0',
+                        'portalocker==2.7.0',
                         'prompt_toolkit>=3.0.18',
                         # 'psutil==5.6.6',
                         'psutil',