diff --git a/Dockerfile b/Dockerfile
index a3537981..efbb28d3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -40,16 +40,22 @@ ENV MIX_ENV="prod"
 
 # install mix dependencies
 COPY mix.exs mix.lock ./
-RUN mix deps.get --only $MIX_ENV
+RUN --mount=type=cache,target=/root/.hex \
+    --mount=type=cache,target=/root/.mix \
+    mix deps.get --only $MIX_ENV
 RUN mkdir config
 
 # copy compile-time config files before we compile dependencies
 # to ensure any relevant config change will trigger the dependencies
 # to be re-compiled.
 COPY config/config.exs config/${MIX_ENV}.exs config/
-RUN mix deps.compile
+RUN --mount=type=cache,target=/root/.hex \
+    --mount=type=cache,target=/root/.mix \
+    mix deps.compile
 
-RUN mix assets.setup
+RUN --mount=type=cache,target=/root/.mix \
+    --mount=type=cache,target=/root/.npm \
+    mix assets.setup
 
 COPY priv priv
 
diff --git a/k8s/Dockerfile b/k8s/Dockerfile
index a3537981..efbb28d3 100644
--- a/k8s/Dockerfile
+++ b/k8s/Dockerfile
@@ -40,16 +40,22 @@ ENV MIX_ENV="prod"
 
 # install mix dependencies
 COPY mix.exs mix.lock ./
-RUN mix deps.get --only $MIX_ENV
+RUN --mount=type=cache,target=/root/.hex \
+    --mount=type=cache,target=/root/.mix \
+    mix deps.get --only $MIX_ENV
 RUN mkdir config
 
 # copy compile-time config files before we compile dependencies
 # to ensure any relevant config change will trigger the dependencies
 # to be re-compiled.
 COPY config/config.exs config/${MIX_ENV}.exs config/
-RUN mix deps.compile
+RUN --mount=type=cache,target=/root/.hex \
+    --mount=type=cache,target=/root/.mix \
+    mix deps.compile
 
-RUN mix assets.setup
+RUN --mount=type=cache,target=/root/.mix \
+    --mount=type=cache,target=/root/.npm \
+    mix assets.setup
 
 COPY priv priv