diff --git a/Dockerfile b/Dockerfile
index 28ef83c..ce44610 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,7 +20,8 @@ RUN apk add --no-cache \
         curl \
         openssl-dev \
         zlib-static \
-        zlib-dev
+        zlib-dev \
+        bash
 
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 # nlohmann/json (compiled static .a)   #