diff --git a/tools/build_secondary/Dockerfile b/tools/build_secondary/Dockerfile
index cb78b2bd5..f6ffc487a 100644
--- a/tools/build_secondary/Dockerfile
+++ b/tools/build_secondary/Dockerfile
@@ -1,4 +1,4 @@
-FROM dart:3.1.5@sha256:397caa91d0df783fd86c1e543eb65e0bcbf3c1b2e21be2d7e2e23fa079924f3b AS buildimage
+FROM dart:3.1.5@sha256:2432c3e2162542ee9d701b9d8524a3220f0182d37407382efa8fd782d1273e82 AS buildimage
 ENV HOMEDIR=/atsign
 ENV USER_ID=1024
 ENV GROUP_ID=1024
diff --git a/tools/build_secondary/Dockerfile.observe b/tools/build_secondary/Dockerfile.observe
index 437edc7ee..9e7fbf562 100644
--- a/tools/build_secondary/Dockerfile.observe
+++ b/tools/build_secondary/Dockerfile.observe
@@ -1,4 +1,4 @@
-FROM dart:3.1.5@sha256:397caa91d0df783fd86c1e543eb65e0bcbf3c1b2e21be2d7e2e23fa079924f3b AS buildimage
+FROM dart:3.1.5@sha256:2432c3e2162542ee9d701b9d8524a3220f0182d37407382efa8fd782d1273e82 AS buildimage
 ENV HOMEDIR=/atsign
 ENV USER_ID=1024
 ENV GROUP_ID=1024