diff --git a/cmd/tink-cli/Dockerfile b/cmd/tink-cli/Dockerfile
index 5d59df740..aa3c0f6e9 100644
--- a/cmd/tink-cli/Dockerfile
+++ b/cmd/tink-cli/Dockerfile
@@ -4,5 +4,5 @@ CMD sleep infinity
 ARG TARGETARCH
 ARG TARGETVARIANT
 
-RUN apk add --no-cache --update --upgrade ca-certificates
+RUN apk add --no-cache --update --upgrade bash ca-certificates
 COPY tink-cli-linux-${TARGETARCH:-amd64}${TARGETVARIANT} /usr/bin/tink