diff --git a/Dockerfile b/Dockerfile
index 167ef57ac..38ecf7a35 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,10 @@
 
 FROM node:18.19.1-alpine3.19 AS builder
 
+# node-gyp needs Python + a C/C++ toolchain to build native modules
+# (e.g. solana/eth signing crates). Alpine ships none of those by default.
+RUN apk add --no-cache python3 make g++
+
 USER node
 WORKDIR /home/node
 
diff --git a/infrastructure/lnbitsapi/Dockerfile b/infrastructure/lnbitsapi/Dockerfile
index 2c9e8b843..efcf97231 100644
--- a/infrastructure/lnbitsapi/Dockerfile
+++ b/infrastructure/lnbitsapi/Dockerfile
@@ -1,6 +1,10 @@
 # Stage 0
 FROM node:18.19.1-alpine3.19 AS builder
 
+# node-gyp needs Python + a C/C++ toolchain to build sqlite3's native binding.
+# Alpine ships none of those by default.
+RUN apk add --no-cache python3 make g++
+
 USER node
 WORKDIR /home/node