diff --git a/cpp/.gitignore.jinja b/cpp/.gitignore.jinja
index 94d0422..6fedb86 100644
--- a/cpp/.gitignore.jinja
+++ b/cpp/.gitignore.jinja
@@ -33,8 +33,6 @@ share/python-wheels/
 MANIFEST
 
 # PyInstaller
-#  Usually these files are written by a python script from a template
-#  before PyInstaller builds the exe, so as to inject date/other infos into it.
 *.manifest
 *.spec
 
@@ -85,11 +83,7 @@ ipython_config.py
 .python-version
 
 # pipenv
-#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
-#   However, in case of collaboration, if having platform-specific dependencies or dependencies
-#   having no cross-platform support, pipenv may install dependencies that don't work, or not
-#   install all needed dependencies.
-#Pipfile.lock
+Pipfile.lock
 
 # PEP 582; used by e.g. github.com/David-OConnor/pyflow
 __pypackages__/
diff --git a/js/.gitignore.jinja b/js/.gitignore.jinja
index 94d0422..6fedb86 100644
--- a/js/.gitignore.jinja
+++ b/js/.gitignore.jinja
@@ -33,8 +33,6 @@ share/python-wheels/
 MANIFEST
 
 # PyInstaller
-#  Usually these files are written by a python script from a template
-#  before PyInstaller builds the exe, so as to inject date/other infos into it.
 *.manifest
 *.spec
 
@@ -85,11 +83,7 @@ ipython_config.py
 .python-version
 
 # pipenv
-#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
-#   However, in case of collaboration, if having platform-specific dependencies or dependencies
-#   having no cross-platform support, pipenv may install dependencies that don't work, or not
-#   install all needed dependencies.
-#Pipfile.lock
+Pipfile.lock
 
 # PEP 582; used by e.g. github.com/David-OConnor/pyflow
 __pypackages__/
diff --git a/jupyter/.gitignore.jinja b/jupyter/.gitignore.jinja
index 94d0422..6fedb86 100644
--- a/jupyter/.gitignore.jinja
+++ b/jupyter/.gitignore.jinja
@@ -33,8 +33,6 @@ share/python-wheels/
 MANIFEST
 
 # PyInstaller
-#  Usually these files are written by a python script from a template
-#  before PyInstaller builds the exe, so as to inject date/other infos into it.
 *.manifest
 *.spec
 
@@ -85,11 +83,7 @@ ipython_config.py
 .python-version
 
 # pipenv
-#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
-#   However, in case of collaboration, if having platform-specific dependencies or dependencies
-#   having no cross-platform support, pipenv may install dependencies that don't work, or not
-#   install all needed dependencies.
-#Pipfile.lock
+Pipfile.lock
 
 # PEP 582; used by e.g. github.com/David-OConnor/pyflow
 __pypackages__/
diff --git a/python/.gitignore.jinja b/python/.gitignore.jinja
index 94d0422..6fedb86 100644
--- a/python/.gitignore.jinja
+++ b/python/.gitignore.jinja
@@ -33,8 +33,6 @@ share/python-wheels/
 MANIFEST
 
 # PyInstaller
-#  Usually these files are written by a python script from a template
-#  before PyInstaller builds the exe, so as to inject date/other infos into it.
 *.manifest
 *.spec
 
@@ -85,11 +83,7 @@ ipython_config.py
 .python-version
 
 # pipenv
-#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
-#   However, in case of collaboration, if having platform-specific dependencies or dependencies
-#   having no cross-platform support, pipenv may install dependencies that don't work, or not
-#   install all needed dependencies.
-#Pipfile.lock
+Pipfile.lock
 
 # PEP 582; used by e.g. github.com/David-OConnor/pyflow
 __pypackages__/
diff --git a/rust/.gitignore.jinja b/rust/.gitignore.jinja
index 94d0422..6fedb86 100644
--- a/rust/.gitignore.jinja
+++ b/rust/.gitignore.jinja
@@ -33,8 +33,6 @@ share/python-wheels/
 MANIFEST
 
 # PyInstaller
-#  Usually these files are written by a python script from a template
-#  before PyInstaller builds the exe, so as to inject date/other infos into it.
 *.manifest
 *.spec
 
@@ -85,11 +83,7 @@ ipython_config.py
 .python-version
 
 # pipenv
-#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
-#   However, in case of collaboration, if having platform-specific dependencies or dependencies
-#   having no cross-platform support, pipenv may install dependencies that don't work, or not
-#   install all needed dependencies.
-#Pipfile.lock
+Pipfile.lock
 
 # PEP 582; used by e.g. github.com/David-OConnor/pyflow
 __pypackages__/