diff --git a/klatexformula/src/userscripts/applepagesexport.klfuserscript/applepagesexport.py b/klatexformula/src/userscripts/applepagesexport.klfuserscript/applepagesexport.py
index 283c4a8..8415ee8 100644
--- a/klatexformula/src/userscripts/applepagesexport.klfuserscript/applepagesexport.py
+++ b/klatexformula/src/userscripts/applepagesexport.klfuserscript/applepagesexport.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # applepagesexport.py
 #   This file is part of the KLatexFormula Project.
diff --git a/klatexformula/src/userscripts/custom-latex-cmd.klfuserscript/custom-latex-cmd.py b/klatexformula/src/userscripts/custom-latex-cmd.klfuserscript/custom-latex-cmd.py
index 26a7276..68fe698 100644
--- a/klatexformula/src/userscripts/custom-latex-cmd.klfuserscript/custom-latex-cmd.py
+++ b/klatexformula/src/userscripts/custom-latex-cmd.klfuserscript/custom-latex-cmd.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # custom-latex-cmd.py
 #   This file is part of the KLatexFormula Project.
diff --git a/klatexformula/src/userscripts/customtemplate.klfuserscript/customtemplate.py b/klatexformula/src/userscripts/customtemplate.klfuserscript/customtemplate.py
index 654719e..0d830cb 100644
--- a/klatexformula/src/userscripts/customtemplate.klfuserscript/customtemplate.py
+++ b/klatexformula/src/userscripts/customtemplate.klfuserscript/customtemplate.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # customtemplate.py
 #   This file is part of the KLatexFormula Project.
diff --git a/klatexformula/src/userscripts/dvipng-backend.klfuserscript/dvipng-backend.py b/klatexformula/src/userscripts/dvipng-backend.klfuserscript/dvipng-backend.py
index 2e6b42b..461833c 100644
--- a/klatexformula/src/userscripts/dvipng-backend.klfuserscript/dvipng-backend.py
+++ b/klatexformula/src/userscripts/dvipng-backend.klfuserscript/dvipng-backend.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # dvipng-backend.py
 #   This file is part of the KLatexFormula Project.
diff --git a/klatexformula/src/userscripts/gif-convert.klfuserscript/gif-convert.py b/klatexformula/src/userscripts/gif-convert.klfuserscript/gif-convert.py
index 6b81a2e..ad14c46 100644
--- a/klatexformula/src/userscripts/gif-convert.klfuserscript/gif-convert.py
+++ b/klatexformula/src/userscripts/gif-convert.klfuserscript/gif-convert.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # gif-convert.py
 #   This file is part of the KLatexFormula Project.
diff --git a/klatexformula/src/userscripts/imagemagickeffect.klfuserscript/imagemagickeffect.py b/klatexformula/src/userscripts/imagemagickeffect.klfuserscript/imagemagickeffect.py
index c3324f6..8f75e87 100644
--- a/klatexformula/src/userscripts/imagemagickeffect.klfuserscript/imagemagickeffect.py
+++ b/klatexformula/src/userscripts/imagemagickeffect.klfuserscript/imagemagickeffect.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import sys
 import os
 import shlex
diff --git a/klatexformula/src/userscripts/inkscapeformats.klfuserscript/inkscapeformats.py b/klatexformula/src/userscripts/inkscapeformats.klfuserscript/inkscapeformats.py
index 5405d86..bb534ab 100644
--- a/klatexformula/src/userscripts/inkscapeformats.klfuserscript/inkscapeformats.py
+++ b/klatexformula/src/userscripts/inkscapeformats.klfuserscript/inkscapeformats.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # inkscapeformats.py
 #   This file is part of the KLatexFormula Project.
diff --git a/klatexformula/src/userscripts/klffeynmf.klfuserscript/klffeynmf.py b/klatexformula/src/userscripts/klffeynmf.klfuserscript/klffeynmf.py
index ff4dcf6..e6f3996 100644
--- a/klatexformula/src/userscripts/klffeynmf.klfuserscript/klffeynmf.py
+++ b/klatexformula/src/userscripts/klffeynmf.klfuserscript/klffeynmf.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # klffeynmf.py
 #   This file is part of the KLatexFormula Project.
diff --git a/klatexformula/src/userscripts/noiseeffect.klfuserscript/noiseeffect.py b/klatexformula/src/userscripts/noiseeffect.klfuserscript/noiseeffect.py
index 4ebd062..a0b909e 100644
--- a/klatexformula/src/userscripts/noiseeffect.klfuserscript/noiseeffect.py
+++ b/klatexformula/src/userscripts/noiseeffect.klfuserscript/noiseeffect.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import sys
 import os
 import subprocess
diff --git a/klatexformula/src/userscripts/pyklfuserscript/__init__.py b/klatexformula/src/userscripts/pyklfuserscript/__init__.py
index d4a9f9d..1824155 100644
--- a/klatexformula/src/userscripts/pyklfuserscript/__init__.py
+++ b/klatexformula/src/userscripts/pyklfuserscript/__init__.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 
 from __future__ import print_function
 
diff --git a/klatexformula/src/userscripts/runpdflatex.klfuserscript/runpdflatex.py b/klatexformula/src/userscripts/runpdflatex.klfuserscript/runpdflatex.py
index 12a8d7a..8022207 100644
--- a/klatexformula/src/userscripts/runpdflatex.klfuserscript/runpdflatex.py
+++ b/klatexformula/src/userscripts/runpdflatex.klfuserscript/runpdflatex.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # runpdflatex.py
 #   This file is part of the KLatexFormula Project.
diff --git a/klatexformula/src/userscripts/svg-dvisvgm.klfuserscript/svg-dvisvgm.py b/klatexformula/src/userscripts/svg-dvisvgm.klfuserscript/svg-dvisvgm.py
index c8c97bb..ebebc97 100644
--- a/klatexformula/src/userscripts/svg-dvisvgm.klfuserscript/svg-dvisvgm.py
+++ b/klatexformula/src/userscripts/svg-dvisvgm.klfuserscript/svg-dvisvgm.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # svg-dvisvgm.py
 #   This file is part of the KLatexFormula Project.