diff --git a/.github/scripts/strategy-matrix/linux.py b/.github/scripts/strategy-matrix/linux.py
index c92dc91f58..8e3b0c9322 100755
--- a/.github/scripts/strategy-matrix/linux.py
+++ b/.github/scripts/strategy-matrix/linux.py
@@ -4,8 +4,8 @@ from helpers.enums import *
 # The default CI image SHAs to use, which can be specified per distro group and
 # can be overridden for individual distros, which is useful when debugging using
 # a locally built CI image. See https://github.com/XRPLF/ci for the images.
-DEBIAN_SHA = "sha-0525eae"
-RHEL_SHA = "sha-0525eae"
+DEBIAN_SHA = "sha-ca4517d"
+RHEL_SHA = "sha-ca4517d"
 UBUNTU_SHA = "sha-84afd81"
 
 DEBIAN_DISTROS = [
diff --git a/.github/workflows/reusable-build-test.yml b/.github/workflows/reusable-build-test.yml
index 1860b9015f..57d07e035f 100644
--- a/.github/workflows/reusable-build-test.yml
+++ b/.github/workflows/reusable-build-test.yml
@@ -45,7 +45,7 @@ jobs:
       enable_tests: ${{ matrix.enable_tests }}
       enable_package: ${{ matrix.enable_package }}
       enable_image: ${{ matrix.enable_image }}
-      runs_on: ${{ matrix.runs_on }}
+      runs_on: ${{ toJson(matrix.runs_on) }}
       image: ${{ matrix.image }}
       config_name: ${{ matrix.config_name }}
     secrets: