diff --git a/CHANGELOG.md b/CHANGELOG.md
index aafaf578..12c88afc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
   absolute and not relative. We assumed incorrectly that epsilon is absolute tolerance.
 
 ### Changed
+- Python scripts start with #!/usr/bin/env python3 instead of python
 - Changed compile flags -Ofast to -O3 and remove --ffinite-math
 - Moved old graph groups to depracated folder
 - Make cublas and cusparse handle inits lazy to save memory when unused
diff --git a/scripts/checkpoints/average.py b/scripts/checkpoints/average.py
index 53bff186..da1ca252 100755
--- a/scripts/checkpoints/average.py
+++ b/scripts/checkpoints/average.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
 This script takes multiple Marian *.npz model files and outputs an elementwise average of the model,
 meant to do check-point averaging from: 
diff --git a/scripts/contrib/inject_ctt.py b/scripts/contrib/inject_ctt.py
index 751ee1c6..620c3152 100755
--- a/scripts/contrib/inject_ctt.py
+++ b/scripts/contrib/inject_ctt.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 from __future__ import print_function
 
diff --git a/scripts/contrib/inject_model_params.py b/scripts/contrib/inject_model_params.py
index 46096eb8..a0e637a3 100755
--- a/scripts/contrib/inject_model_params.py
+++ b/scripts/contrib/inject_model_params.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 from __future__ import print_function
 
diff --git a/scripts/embeddings/prepare_corpus.py b/scripts/embeddings/prepare_corpus.py
index 98326218..0c54be5d 100755
--- a/scripts/embeddings/prepare_corpus.py
+++ b/scripts/embeddings/prepare_corpus.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 from __future__ import print_function
diff --git a/scripts/embeddings/process_word2vec.py b/scripts/embeddings/process_word2vec.py
index 4f5ba493..685f8d23 100755
--- a/scripts/embeddings/process_word2vec.py
+++ b/scripts/embeddings/process_word2vec.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 from __future__ import print_function
diff --git a/scripts/server/client_example.py b/scripts/server/client_example.py
index 7f9e0ae3..4c194d74 100755
--- a/scripts/server/client_example.py
+++ b/scripts/server/client_example.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 from __future__ import print_function, unicode_literals, division