diff --git a/Dockerfile b/Dockerfile
index 078b96a15..8aea9d54a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,18 +8,20 @@ WORKDIR /misskey
 
 FROM base AS builder
 
+RUN unlink /usr/bin/free
 RUN apk add --no-cache \
-    gcc \
-    g++ \
-    libc-dev \
-    python \
     autoconf \
     automake \
     file \
+    g++ \
+    gcc \
+    libc-dev \
+    libtool \
     make \
     nasm \
     pkgconfig \
-    libtool \
+    procps \
+    python \
     zlib-dev
 RUN npm i -g node-gyp