diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 35ed0c30..fabf380e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -57,9 +57,8 @@ jobs:
             ubuntu_23,
             centos_8,
             centos_9,
-            fedora_36,
-            fedora_37,
-            fedora_38,
+             fedora_38,
+            fedora_39,
           ]
     env:
       DISTRO: ${{matrix.distro}}
diff --git a/gravity.sh b/gravity.sh
index 62631e3c..86c7fc23 100755
--- a/gravity.sh
+++ b/gravity.sh
@@ -503,6 +503,7 @@ compareLists() {
 gravity_DownloadBlocklistFromUrl() {
   local url="${1}" adlistID="${2}" saveLocation="${3}" target="${4}" compression="${5}"
   local heisenbergCompensator="" listCurlBuffer str httpCode success="" ip cmd_ext
+  local file_path permissions ip_addr port blocked=false download=true
 
   # Create temp file to store content on disk instead of RAM
   # We don't use '--suffix' here because not all implementations of mktemp support it, e.g. on Alpine
@@ -519,7 +520,6 @@ gravity_DownloadBlocklistFromUrl() {
 
   str="Status:"
   echo -ne "  ${INFO} ${str} Pending..."
-  blocked=false
   case $BLOCKINGMODE in
     "IP-NODATA-AAAA"|"IP")
       # Get IP address of this domain
@@ -560,8 +560,36 @@ gravity_DownloadBlocklistFromUrl() {
     cmd_ext="--resolve $domain:$port:$ip"
   fi
 
-  # shellcheck disable=SC2086
-  httpCode=$(curl --connect-timeout ${curl_connect_timeout} -s -L ${compression} ${cmd_ext} ${heisenbergCompensator} -w "%{http_code}" "${url}" -o "${listCurlBuffer}" 2> /dev/null)
+  # If we are going to "download" a local file, we first check if the target
+  # file has a+r permission. We explicitly check for all+read because we want
+  # to make sure that the file is readable by everyone and not just the user
+  # running the script.
+  if [[ $url == "file://"* ]]; then
+    # Get the file path
+    file_path=$(echo "$url" | cut -d'/' -f3-)
+    # Check if the file exists
+    if [[ ! -e $file_path ]]; then
+      # Output that the file does not exist
+      echo -e "${OVER}  ${CROSS} ${file_path} does not exist"
+      download=false
+    else
+      # Check if the file has a+r permissions
+      permissions=$(stat -c "%a" "$file_path")
+      if [[ $permissions == "??4" || $permissions == "??5" || $permissions == "??6" || $permissions == "??7" ]]; then
+        # Output that we are using the local file
+        echo -e "${OVER}  ${INFO} Using local file ${file_path}"
+      else
+        # Output that the file does not have the correct permissions
+        echo -e "${OVER}  ${CROSS} Cannot read file (file needs to have a+r permission)"
+        download=false
+      fi
+    fi
+  fi
+
+  if [[ "${download}" == true ]]; then
+    # shellcheck disable=SC2086
+    httpCode=$(curl --connect-timeout ${curl_connect_timeout} -s -L ${compression} ${cmd_ext} ${heisenbergCompensator} -w "%{http_code}" "${url}" -o "${listCurlBuffer}" 2> /dev/null)
+  fi
 
   case $url in
     # Did we "download" a local file?
@@ -569,7 +597,7 @@ gravity_DownloadBlocklistFromUrl() {
       if [[ -s "${listCurlBuffer}" ]]; then
         echo -e "${OVER}  ${TICK} ${str} Retrieval successful"; success=true
       else
-        echo -e "${OVER}  ${CROSS} ${str} Not found / empty list"
+        echo -e "${OVER}  ${CROSS} ${str} Retrieval failed / empty list"
       fi;;
     # Did we "download" a remote file?
     *)
diff --git a/test/_fedora_37.Dockerfile b/test/_fedora_37.Dockerfile
deleted file mode 100644
index b4f939ba..00000000
--- a/test/_fedora_37.Dockerfile
+++ /dev/null
@@ -1,18 +0,0 @@
-FROM fedora:37
-RUN dnf install -y git initscripts
-
-ENV GITDIR /etc/.pihole
-ENV SCRIPTDIR /opt/pihole
-
-RUN mkdir -p $GITDIR $SCRIPTDIR /etc/pihole
-ADD . $GITDIR
-RUN cp $GITDIR/advanced/Scripts/*.sh $GITDIR/gravity.sh $GITDIR/pihole $GITDIR/automated\ install/*.sh $SCRIPTDIR/
-ENV PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$SCRIPTDIR
-
-RUN true && \
-    chmod +x $SCRIPTDIR/*
-
-ENV SKIP_INSTALL true
-ENV OS_CHECK_DOMAIN_NAME dev-supportedos.pi-hole.net
-
-#sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \
diff --git a/test/_fedora_36.Dockerfile b/test/_fedora_39.Dockerfile
similarity index 97%
rename from test/_fedora_36.Dockerfile
rename to test/_fedora_39.Dockerfile
index 847767e7..1727a3aa 100644
--- a/test/_fedora_36.Dockerfile
+++ b/test/_fedora_39.Dockerfile
@@ -1,4 +1,4 @@
-FROM fedora:36
+FROM fedora:39
 RUN dnf install -y git initscripts
 
 ENV GITDIR /etc/.pihole
diff --git a/test/requirements.txt b/test/requirements.txt
index 0873d097..d4415e2b 100644
--- a/test/requirements.txt
+++ b/test/requirements.txt
@@ -1,6 +1,6 @@
 pyyaml == 6.0.1
-pytest == 7.4.4
+pytest == 8.0.2
 pytest-xdist == 3.5.0
-pytest-testinfra == 10.0.0
-tox == 4.11.4
+pytest-testinfra == 10.1.0
+tox == 4.14.1
 
diff --git a/test/tox.fedora_36.ini b/test/tox.fedora_36.ini
deleted file mode 100644
index 515487ed..00000000
--- a/test/tox.fedora_36.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-commands = docker buildx build --load --progress plain -f _fedora_36.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py ./test_fedora_support.py
diff --git a/test/tox.fedora_37.ini b/test/tox.fedora_39.ini
similarity index 85%
rename from test/tox.fedora_37.ini
rename to test/tox.fedora_39.ini
index 2a8ef398..7a538371 100644
--- a/test/tox.fedora_37.ini
+++ b/test/tox.fedora_39.ini
@@ -4,5 +4,5 @@ envlist = py3
 [testenv]
 allowlist_externals = docker
 deps = -rrequirements.txt
-commands = docker buildx build --load --progress plain -f _fedora_37.Dockerfile -t pytest_pihole:test_container ../
+commands = docker buildx build --load --progress plain -f _fedora_39.Dockerfile -t pytest_pihole:test_container ../
            pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py ./test_fedora_support.py