diff --git a/main.sh b/main.sh
index 2171ed5..7f8ce8f 100644
--- a/main.sh
+++ b/main.sh
@@ -121,7 +121,8 @@ sudo apt-get install -y calc
 sudo apt-get install -y openssh-server
 
 # Wine (run windoze apps)
-sudo add-apt-repository ppa:ubuntu-wine/ppa
+sudo add-apt-repository -y ppa:ubuntu-wine/ppa
+sudo apt-get update
 sudo apt-get install -y wine
 
 # Gpick (color picker)
diff --git a/user-programs.sh b/user-programs.sh
index a7838af..676a53d 100644
--- a/user-programs.sh
+++ b/user-programs.sh
@@ -17,10 +17,12 @@ sudo apt-get install -y ffmpeg ffmpeg-doc
 
 # OBS studio (screen recording)
 sudo add-apt-repository -y ppa:obsproject/obs-studio
+sudo apt-get update
 sudo apt-get install -y obs-studio
 
 # FreeCAD (3D parametric modeling)
 sudo add-apt-repository -y ppa:freecad-maintainers/freecad-stable
+sudo apt-get update
 sudo apt-get install -y freecad freecad-doc
 
 # 3D printing slicer