diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 82c4add..f9076e8 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -43,8 +43,8 @@ jobs:
           push: true
           tags: |
             ghcr.io/scheiblingco/smtp-relay:latest
-            ghcr.io/scheiblingco/smtp-relay:0.5.1
+            ghcr.io/scheiblingco/smtp-relay:0.5.2
             docker.io/scheibling/smtp-relay:latest
-            docker.io/scheibling/smtp-relay:0.5.1
+            docker.io/scheibling/smtp-relay:0.5.2
 
       
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 87aada5..5d6f4b5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,6 +13,10 @@ FROM scratch
 COPY --from=builder /build/smtp-relay /smtp-relay
 COPY --from=builder /build/config.example.json /config.json
 
+RUN apk --no-cache add ca-certificates \
+    && update-ca-certificates \
+    && rm -rf /var/cache/apk/* 
+
 EXPOSE 2525
 
 CMD ["/smtp-relay"]
\ No newline at end of file