diff --git a/samples/MicroserviceDemo/databases/Dockerfile b/samples/MicroserviceDemo/databases/Dockerfile
index 42942cb844..dad3238039 100644
--- a/samples/MicroserviceDemo/databases/Dockerfile
+++ b/samples/MicroserviceDemo/databases/Dockerfile
@@ -16,7 +16,7 @@ WORKDIR /src
 COPY --from=build /src/samples/MicroserviceDemo/microservices/ProductService.Host ./ProductService.Host
 COPY --from=build /src/samples/MicroserviceDemo/applications/AuthServer.Host ./AuthServer.Host
 COPY --from=build /src/samples/MicroserviceDemo/databases/entrypoint.sh .
-RUN sed -i $'s/\r$//' entrypoint.sh
+RUN /bin/bash -c "sed -i $'s/\r$//' entrypoint.sh"
 RUN chmod +x ./entrypoint.sh
 
 ENTRYPOINT ["./entrypoint.sh"]
diff --git a/samples/MicroserviceDemo/databases/restore/Dockerfile b/samples/MicroserviceDemo/databases/restore/Dockerfile
index 0e0b96ac51..d0598eed28 100644
--- a/samples/MicroserviceDemo/databases/restore/Dockerfile
+++ b/samples/MicroserviceDemo/databases/restore/Dockerfile
@@ -10,6 +10,6 @@ WORKDIR /src
 COPY --from=unzip /src/MsDemo_Identity.bak .
 COPY --from=unzip /src/MsDemo_ProductManagement.bak .
 COPY /samples/MicroserviceDemo/databases/restore/entrypoint.sh .
-RUN sed -i $'s/\r$//' entrypoint.sh
+RUN /bin/bash -c "sed -i $'s/\r$//' entrypoint.sh"
 RUN chmod +x ./entrypoint.sh
 ENTRYPOINT [ "./entrypoint.sh" ]
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