diff --git a/src/3.8/Dockerfile b/src/3.8/Dockerfile
index 5ea9258..fbfc53e 100644
--- a/src/3.8/Dockerfile
+++ b/src/3.8/Dockerfile
@@ -130,7 +130,7 @@ RUN python3 -m pip install https://api.github.com/repos/nest/nestml/zipball/pull
 
     # python3 -m pip install nestml==8.0.0rc1 && \
 
-RUN python3 -m pip install nestml-server@git+https://github.com/babsey/nestml-server@v1.0-b3 && \
+RUN python3 -m pip install nestml-server@git+https://github.com/babsey/nestml-server@v1.0-b4 && \
     python3 -m pip install --upgrade pygsl@git+https://github.com/pygsl/pygsl@v2.3.3
 
 COPY entrypoint.sh /usr/local/bin/entrypoint.sh
diff --git a/src/dev/Dockerfile b/src/dev/Dockerfile
index 1282183..b5827a5 100644
--- a/src/dev/Dockerfile
+++ b/src/dev/Dockerfile
@@ -97,8 +97,8 @@ RUN cd ${SRC_PATH} && \
 
 # Installing the requirements_docs.txt stops at some time with an error
 # Installing every package fix it.
-RUN python3 -m pip install sphinx>=6.2.1 sphinx_rtd_theme sphinx_autobuild sphinx_gallery sphinx-tabs 
-RUN python3 -m pip install sphinx_design sphinx-material sphinx-copybutton sphinx-carousel 
+RUN python3 -m pip install sphinx>=6.2.1 sphinx_rtd_theme sphinx_autobuild sphinx_gallery sphinx-tabs
+RUN python3 -m pip install sphinx_design sphinx-material sphinx-copybutton sphinx-carousel
 RUN python3 -m pip install sphinx-notfound-page sphinxcontrib-mermaid sphinxcontrib-plantuml nbsphinx
 RUN python3 -m pip install  numpydoc example Image breathe csvkit docutils PyYAML>=4.2b1 tqdm yamllint
 
@@ -147,7 +147,7 @@ RUN python3 -m pip install --upgrade pip && \
     python3 -m pip install nest-desktop --pre && \
     python3 -m pip uninstall nestml -y && \
     python3 -m pip install --upgrade https://github.com/nest/nestml/archive/refs/heads/master.zip && \
-    python3 -m pip install nestml-server@git+https://github.com/babsey/nestml-server@v1.0-b3
+    python3 -m pip install nestml-server@git+https://github.com/babsey/nestml-server@v1.0-b4
 
 RUN python3 -m pip install --force-reinstall --upgrade scipy