diff --git a/README.md b/README.md
index 1b82fa7..2c50f32 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,6 @@ X_nc = aakr.predict(X_obs)
 
 ## References
 
-* [MTM algorithm by Martello and Toth](http://people.sc.fsu.edu/~jburkardt/f77_src/knapsack/knapsack.f) (Fortran)
 * [A modified Auto Associative Kernel Regression method for robust signal reconstruction in nuclear power plant components](https://www.researchgate.net/publication/292538769_A_modified_Auto_Associative_Kernel_Regression_method_for_robust_signal_reconstruction_in_nuclear_power_plant_components)
 
 ---
diff --git a/Untitled.ipynb b/Untitled.ipynb
deleted file mode 100644
index 7fec515..0000000
--- a/Untitled.ipynb
+++ /dev/null
@@ -1,6 +0,0 @@
-{
- "cells": [],
- "metadata": {},
- "nbformat": 4,
- "nbformat_minor": 4
-}
diff --git a/VERSION b/VERSION
index cc20a9d..a2427fb 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.0.1dev1
\ No newline at end of file
+0.0.1dev2
\ No newline at end of file
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 76dd393..9e4f6e2 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,2 +1,2 @@
-pytest>=5.4.2
+pytest==5.4.2
 twine==3.2.0
\ No newline at end of file
diff --git a/setup.py b/setup.py
index fd76882..c95904c 100644
--- a/setup.py
+++ b/setup.py
@@ -51,4 +51,4 @@
             'matplotlib'
         ]
     }
-)
\ No newline at end of file
+)