diff --git a/Dockerfile b/Dockerfile
index 4b66a130..312e5c3e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -31,6 +31,7 @@ env BASE_URL= \
     MATRIX_DATABASE_PASSWORD= \
     MATRIX_DATABASE_SSL= \
     MATRIX_DATABASE_USER= \
+    NODE_EXTRA_CA_CERTS= \
     OIDC_ISSUER= \
     SERVER_NAME= \
     TEMPLATE_DIR=/usr/src/app/packages/tom-server/templates \
@@ -54,4 +55,4 @@ COPY . .
 RUN npm install && npm run build && npm cache clean --force
 
 EXPOSE 3000
-CMD [ "node", "/usr/src/app/server.mjs" ]
\ No newline at end of file
+CMD [ "node", "/usr/src/app/server.mjs" ]
diff --git a/packages/federation-server/Dockerfile b/packages/federation-server/Dockerfile
index cb0511d5..faf79808 100644
--- a/packages/federation-server/Dockerfile
+++ b/packages/federation-server/Dockerfile
@@ -18,6 +18,7 @@ ENV BASE_URL= \
     MATRIX_DATABASE_NAME= \
     MATRIX_DATABASE_PASSWORD= \
     MATRIX_DATABASE_USER= \
+    NODE_EXTRA_CA_CERTS= \
     SERVER_NAME= \
     TEMPLATE_DIR= \
     TRUST_X_FORWARDED_FOR= \