diff --git a/apt.txt_hidden b/apt.txt_hidden
deleted file mode 100644
index b4d31fa80bd4a0fcb5a9d64f27914951ae932746..0000000000000000000000000000000000000000
--- a/apt.txt_hidden
+++ /dev/null
@@ -1 +0,0 @@
-libgeos-dev
diff --git a/source/dataset_preanalysis.py b/source/dataset_preanalysis.py
index 0af621e83ab8d77b5e1aca0ae541e7a17bf443be..df43d4e8ecf5a053b33fd7fbadc8d88f543cdae4 100644
--- a/source/dataset_preanalysis.py
+++ b/source/dataset_preanalysis.py
@@ -234,7 +234,7 @@ class PreMis:
         """
         plot = msno.matrix(self.data, fontsize=8, labels=True)
         fig = plot.get_figure()
-        fig.savefig(self.plot_dir+'missingno_matrix.png', dpi=500)
+        fig.savefig(self.plot_dir+'missingno_matrix.png', dpi=100)
 
     def missingno_heatmap(self):
         """
@@ -242,7 +242,7 @@ class PreMis:
         """
         plot = msno.heatmap(self.data, fontsize=8, cmap='coolwarm')
         fig = plot.get_figure()
-        fig.savefig(self.plot_dir+'missingno_heatmap.png', dpi=500)
+        fig.savefig(self.plot_dir+'missingno_heatmap.png', dpi=100)
 
 
 class PreMap: