pip versions adjusted to be not in conflict

requirements.txt

@@ -16,7 +16,7 @@ django-excel==0.0.10
 django-formtools==2.2
 django-npm==1.0.0
 django-otp==1.0.2
-django-phonenumber-field==5.0.0
+django-phonenumber-field==3.0.1
 django-stronghold==0.4.0
 django-two-factor-auth==1.13
 enum34==1.1.10
@@ -36,7 +36,7 @@ numpy==1.19.4
 pandas==1.1.4
 django-datatables-view==1.19.1
 phonenumberslite==8.12.13
-Pillow==3.4.2
+Pillow==6.2.2
 psycopg2==2.8.6
 pycparser==2.20
 pyexcel==0.6.6