diff --git a/.github/scripts/install-rtai.sh b/.github/scripts/install-rtai.sh
index 7a9f37329a6..04f6619a580 100755
--- a/.github/scripts/install-rtai.sh
+++ b/.github/scripts/install-rtai.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 set -eu #Needed so CI fails when anything is wrong
 set -x
@@ -10,17 +10,19 @@ if false; then
     .github/scripts/add-linuxcnc-repository.sh "$DIST"
     sudo apt-get --yes install linux-headers-5.4.279-rtai-amd64 linux-image-5.4.279-rtai-amd64 rtai-modules-5.4.279
 else
+    CURLOPTS=( --no-progress-meter --retry-all-errors --retry 5 --retry-delay 2 -fLO )
+    NTULINUX_DLD="https://github.com/NTULINUX/RTAI/releases/download"
     #To install the RTAI deb's from NTULINUX git
     TMPDIR=$(mktemp -d)
     (
         cd "$TMPDIR"
-        curl --no-progress-meter -fLO https://github.com/NTULINUX/RTAI/releases/download/v5.3.4/linux-headers-5.4.302-rtai-amd64_5.4.302-rtai-amd64-1_amd64.deb
-        curl --no-progress-meter -fLO https://github.com/NTULINUX/RTAI/releases/download/v5.3.4/linux-image-5.4.302-rtai-amd64_5.4.302-rtai-amd64-1_amd64.deb
-        curl --no-progress-meter -fLO https://github.com/NTULINUX/RTAI/releases/download/v5.3.4/rtai-modules-5.4.302_5.3.4-linuxcnc_amd64.deb
+        curl "${CURLOPTS[@]}" "${NTULINUX_DLD}/v5.3.4/linux-headers-5.4.302-rtai-amd64_5.4.302-rtai-amd64-1_amd64.deb"
+        curl "${CURLOPTS[@]}" "${NTULINUX_DLD}/v5.3.4/linux-image-5.4.302-rtai-amd64_5.4.302-rtai-amd64-1_amd64.deb"
+        curl "${CURLOPTS[@]}" "${NTULINUX_DLD}/v5.3.4/rtai-modules-5.4.302_5.3.4-linuxcnc_amd64.deb"
     )
     sudo dpkg -i \
     "$TMPDIR/linux-headers-5.4.302-rtai-amd64_5.4.302-rtai-amd64-1_amd64.deb" \
     "$TMPDIR/linux-image-5.4.302-rtai-amd64_5.4.302-rtai-amd64-1_amd64.deb" \
     "$TMPDIR/rtai-modules-5.4.302_5.3.4-linuxcnc_amd64.deb"
     rm -rf "$TMPDIR"
-fi
\ No newline at end of file
+fi