diff --git a/sonic-slave-bookworm/Dockerfile.j2 b/sonic-slave-bookworm/Dockerfile.j2
index 74afcaa668f..e980807e763 100644
--- a/sonic-slave-bookworm/Dockerfile.j2
+++ b/sonic-slave-bookworm/Dockerfile.j2
@@ -561,7 +561,9 @@ RUN patch -p1 -i /disable-non-manylinux.patch /usr/local/lib/python3.11/dist-pac
 RUN pip3 install fastentrypoints mock
 
 # For DASH BMv2
-RUN pip3 install jsonpath_ng
+# Exclude jsonpath_ng 1.8.0 because it causes DASH pipeline failures
+# In version 1.8.0, dict is flattened to a list, which causes type error in DASH.
+RUN pip3 install jsonpath_ng!=1.8.0
 RUN pip3 install pyyaml-include
 
 # For building sonic_ycabled
diff --git a/sonic-slave-trixie/Dockerfile.j2 b/sonic-slave-trixie/Dockerfile.j2
index 99b0f6dd7d9..e1ec7a1f834 100644
--- a/sonic-slave-trixie/Dockerfile.j2
+++ b/sonic-slave-trixie/Dockerfile.j2
@@ -568,7 +568,9 @@ RUN eatmydata apt-get install -y golang-go \
 RUN pip3 install fastentrypoints mock
 
 # For DASH BMv2
-RUN pip3 install jsonpath_ng pyyaml-include
+# Exclude jsonpath_ng 1.8.0 because it causes DASH pipeline failures
+# In version 1.8.0, dict is flattened to a list, which causes type error in DASH.
+RUN pip3 install jsonpath_ng!=1.8.0 pyyaml-include
 
 # For building sonic_ycabled
 # Note: Match version in trixie