updated requirements

requirements_development.txt

@@ -1,21 +1,21 @@
-bleach==3.0.1
-certifi==2018.8.24
-cffi==1.11.5
+bleach==3.1.0
+certifi==2019.3.9
+cffi==1.12.3
 chardet==3.0.4
 cmarkgfm==0.4.2
 docutils==0.14
-future==0.16.0
+future==0.17.1
 idna==2.7
-piexif==1.0.13
-Pillow==5.3.0
+piexif==1.1.2
+Pillow==6.0.0
 pkginfo==1.4.2
 pycparser==2.19
-Pygments==2.2.0
-readme-renderer==22.0
-requests==2.20.1
+Pygments==2.3.1
+readme-renderer==24.0
+requests==2.21.0
 requests-toolbelt==0.8.0
-six==1.11.0
-tqdm==4.26.0
-twine==1.12.1
-urllib3==1.23
+six==1.12.0
+tqdm==4.31.1
+twine==1.13.0
+urllib3==1.24.2
 webencodings==0.5.1

setup.py

@@ -67,7 +67,7 @@ def read_readme(file_name):
                'seo-optimization website-performance cli recursive non-recursive',
 
       install_requires=[
-          'piexif==1.0.13',
+          'piexif==1.1.2',
       ],
 
       entry_points={