diff --git a/.changeset/wet-drinks-fail.md b/.changeset/wet-drinks-fail.md
new file mode 100644
index 00000000..7c2e8173
--- /dev/null
+++ b/.changeset/wet-drinks-fail.md
@@ -0,0 +1,5 @@
+---
+"@cartesi/sdk": patch
+---
+
+add tini to cartesi/rollups-runtime
diff --git a/packages/sdk/Dockerfile b/packages/sdk/Dockerfile
index c41411d8..c476bbdd 100644
--- a/packages/sdk/Dockerfile
+++ b/packages/sdk/Dockerfile
@@ -72,7 +72,7 @@ curl -fsSL https://github.com/foundry-rs/foundry/releases/download/v${FOUNDRY_VE
 case "${TARGETARCH}" in
     amd64) echo "325ba04dc5cb41c110723b00ac291f8269f8cd785028299aad8252ef980961a7 /tmp/foundry.tar.gz" | sha256sum --check ;;
     arm64) echo "209492cb4ebd723d9eac002fa30f41f53c8810105b67d3c32fe8201cf70f89d4 /tmp/foundry.tar.gz" | sha256sum --check ;;
-    *) echo "unsupported architecture: $ARCH"; exit 1 ;;
+    *) echo "unsupported architecture: ${TARGETARCH}"; exit 1 ;;
 esac
 tar -zx -f /tmp/foundry.tar.gz -C /usr/local/bin
 EOF
@@ -96,6 +96,27 @@ make
 ./mksquashfs -version
 EOF
 
+################################################################################
+# install tini
+FROM base AS tini
+ARG TINI_VERSION
+ARG TARGETARCH
+RUN <<EOF
+case "${TARGETARCH}" in
+    amd64)
+        curl -fsSL https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-${TARGETARCH} \
+        -o /usr/local/bin/tini;
+        echo "93dcc18adc78c65a028a84799ecf8ad40c936fdfc5f2a57b1acda5a8117fa82c /usr/local/bin/tini" | sha256sum --check ;;
+    arm64)
+        curl -fsSL https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-${TARGETARCH} \
+        -o /usr/local/bin/tini;
+        echo "07952557df20bfd2a95f9bef198b445e006171969499a1d361bd9e6f8e5e0e81 /usr/local/bin/tini" | sha256sum --check ;;
+    *) echo "unsupported architecture: ${TARGETARCH}"; exit 1 ;;
+esac
+chmod +x /usr/local/bin/tini
+tini --version
+EOF
+
 ################################################################################
 # cartesi rollups-runtime target
 FROM base AS rollups-runtime
@@ -159,6 +180,7 @@ EOF
 COPY --from=su-exec /usr/local/bin/su-exec /usr/local/bin/
 COPY --from=nitro /usr/local/src/nitro /usr/local/bin/
 COPY --from=nitro /usr/local/src/nitroctl /usr/local/bin/
+COPY --from=tini /usr/local/bin/tini /usr/local/bin/
 COPY skel/ /
 RUN <<EOF
 mkdir -p /run/nitro
diff --git a/packages/sdk/docker-bake.hcl b/packages/sdk/docker-bake.hcl
index 9d952b34..c4035786 100644
--- a/packages/sdk/docker-bake.hcl
+++ b/packages/sdk/docker-bake.hcl
@@ -23,6 +23,7 @@ target "default" {
     POSTGRES_BASE_IMAGE               = "docker.io/library/postgres:17-trixie@sha256:9ba47fa6d1c34e9cc4c1758640e7774a9b73ea0fba891f14088321ba7561d253"
     SQUASHFS_TOOLS_VERSION            = "bad1d213ab6df587d6fa0ef7286180fbf7b86167" # 4.7.4
     SU_EXEC_VERSION                   = "0.3"
+    TINI_VERSION                      = "0.19.0"
     XGENEXT2_VERSION                  = "1.5.6"
   }
 }