diff --git a/doc/PRE_UPGRADE.d/2.4.3~ynh2.md b/doc/PRE_UPGRADE.d/2.4.3~ynh2.md
new file mode 100644
index 0000000..a07324f
--- /dev/null
+++ b/doc/PRE_UPGRADE.d/2.4.3~ynh2.md
@@ -0,0 +1,3 @@
+Starting 2.4.3~ynh2, and while YunoHost 12 is yet to be released, Paperless-NGX will require to build its Ghostscript dependency to be able to process documents.
+
+Expect a longer upgrade !
diff --git a/manifest.toml b/manifest.toml
index 6a4ef8f..38073a7 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -5,7 +5,7 @@ name = "Paperless-ngx"
 description.en = "Scan, index and archive all your physical documents"
 description.fr = "Scannez, triez et archivez tous vos documents papiers"
 
-version = "2.5.0~ynh1"
+version = "2.5.0~ynh2"
 
 maintainers = ["Tagada"]
 
diff --git a/scripts/install b/scripts/install
index 89f16eb..349c6c2 100755
--- a/scripts/install
+++ b/scripts/install
@@ -60,7 +60,7 @@ popd
 #=================================================
 # BUILD GHOSTCRIPT SPECIFIC VERSION
 #=================================================
-ynh_script_progression --message="Building Ghostscript dependency..."
+ynh_script_progression --message="Building Ghostscript dependency... (this will take a long time!)"
 
 pushd $install_dir/ghostscript
     ynh_exec_warn_less ./configure
diff --git a/scripts/upgrade b/scripts/upgrade
index 0f9267c..7e709de 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -100,7 +100,7 @@ popd
 #=================================================
 if [[ ! -f $install_dir/ghostscript/bin/gs ]] && grep -q "10.02.1" $($install_dir/ghostscript/bin/gs -v)
 then
-    ynh_script_progression --message="Building Ghostscript dependency..."
+    ynh_script_progression --message="Building Ghostscript dependency... (this will take a long time!)"
 
     ynh_setup_source --dest_dir="$install_dir/ghostscript" --source_id="gs" --full_replace