diff --git a/.flake8 b/.flake8
index ab5af1a..607f57e 100644
--- a/.flake8
+++ b/.flake8
@@ -1,2 +1,4 @@
 [flake8]
 exclude = bin,lib
+max-line-length = 88
+extend-ignore = E203
diff --git a/.travis.yml b/.travis.yml
index ecc2c00..8740e6f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 language: python
 python:
-  - "2.7"
-  #- "3.5"
+  - "3.9"
 script:
   - make test
 after_success:
diff --git a/polycules.py b/polycules.py
index 30e6da9..e724455 100644
--- a/polycules.py
+++ b/polycules.py
@@ -50,18 +50,16 @@ def migrate():
         for filename in sorted(os.listdir(migrations_dir)):
             if filename[-3:] != "sql":
                 continue
-            migration_number = int(filename[:3])
+            migration_number = int(filename.split("-", 1)[0])
             if migration_number <= current_migration:
                 print("migration {} already applied".format(migration_number))
                 continue
-            with open(os.path.join(migrations_dir, filename), "rb") as f:
+            with open(os.path.join(migrations_dir, filename), "r") as f:
                 try:
                     db.cursor().executescript(f.read())
                 except Exception as e:
                     print("Got {} - maybe already applied?".format(e))
-                finally:
-                    pass
-            if filename[:3] == "003":
+            if migration_number == 3:
                 hashify.migrate(db)
 
 
diff --git a/requirements.txt b/requirements.txt
index b95304e..5f23404 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,8 +9,10 @@ chardet==3.0.4
 click==7.1.2
 colorama==0.4.3
 contextlib2==0.6.0
+coverage==5.5
 distlib==0.3.0
 distro==1.4.0
+flake8==3.9.2
 Flask==1.1.2
 html5lib==1.0.1
 idna==2.8
@@ -21,12 +23,16 @@ jsonschema==3.2.0
 lockfile==0.12.2
 Markdown==3.2.2
 MarkupSafe==1.1.1
+mccabe==0.6.1
 msgpack==0.6.2
+nose==1.3.7
 packaging==20.3
 pathspec==0.8.0
 pep517==0.8.2
 progress==1.5
+pycodestyle==2.7.0
 pycparser==2.20
+pyflakes==2.3.1
 pyparsing==2.4.6
 pyrsistent==0.16.0
 pytoml==0.1.21