diff --git a/docs/install.md b/docs/install.md
index eb4e1d1b..7586ac63 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -20,21 +20,21 @@ deb/rpm packages.
 
 === "x86_64/amd64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.2/ntfy_1.5.2_linux_x86_64.tar.gz
+    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.3/ntfy_1.5.3_linux_x86_64.tar.gz
     sudo tar -C /usr/bin -zxf ntfy_*.tar.gz ntfy
     sudo ./ntfy
     ```
 
 === "armv7/armhf"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.2/ntfy_1.5.2_linux_armv7.tar.gz
+    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.3/ntfy_1.5.3_linux_armv7.tar.gz
     sudo tar -C /usr/bin -zxf ntfy_*.tar.gz ntfy
     sudo ./ntfy
     ```
 
 === "arm64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.2/ntfy_1.5.2_linux_arm64.tar.gz
+    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.3/ntfy_1.5.3_linux_arm64.tar.gz
     sudo tar -C /usr/bin -zxf ntfy_*.tar.gz ntfy
     sudo ./ntfy
     ```
@@ -82,7 +82,7 @@ Manually installing the .deb file:
 
 === "x86_64/amd64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.2/ntfy_1.5.2_linux_amd64.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.3/ntfy_1.5.3_linux_amd64.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -90,7 +90,7 @@ Manually installing the .deb file:
 
 === "armv7/armhf"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.2/ntfy_1.5.2_linux_armv7.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.3/ntfy_1.5.3_linux_armv7.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -98,7 +98,7 @@ Manually installing the .deb file:
 
 === "arm64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.2/ntfy_1.5.2_linux_arm64.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v1.5.3/ntfy_1.5.3_linux_arm64.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -108,21 +108,21 @@ Manually installing the .deb file:
 
 === "x86_64/amd64"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v1.5.2/ntfy_1.5.2_linux_amd64.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v1.5.3/ntfy_1.5.3_linux_amd64.rpm
     sudo systemctl enable ntfy 
     sudo systemctl start ntfy
     ```
 
 === "armv7/armhf"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v1.5.2/ntfy_1.5.2_linux_armv7.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v1.5.3/ntfy_1.5.3_linux_armv7.rpm
     sudo systemctl enable ntfy 
     sudo systemctl start ntfy
     ```
 
 === "arm64"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v1.5.2/ntfy_1.5.2_linux_arm64.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v1.5.3/ntfy_1.5.3_linux_arm64.rpm
     sudo systemctl enable ntfy 
     sudo systemctl start ntfy
     ```
diff --git a/scripts/postinst.sh b/scripts/postinst.sh
index 2fa34e7c..8ecf6c52 100755
--- a/scripts/postinst.sh
+++ b/scripts/postinst.sh
@@ -15,7 +15,7 @@ if [ "$1" = "configure" ] && [ -d /run/systemd/system ]; then
   # Hack to change permissions on cache file
   configfile="/etc/ntfy/config.yml"
   if [ -f "$configfile" ]; then
-    cachefile="$(cat "$configfile" | perl -n -e'/^\s*cache-file: (.+)/ && print $1')"
+    cachefile="$(cat "$configfile" | perl -n -e'/^\s*cache-file: ["'"'"']?([^"'"'"']+)["'"'"']?/ && print $1')" # Oh my, see #47
     if [ -n "$cachefile" ]; then
       chown ntfy.ntfy "$cachefile" || true
     fi