diff --git a/Cargo.lock b/Cargo.lock
index e2ac679..f0cef53 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2669,7 +2669,7 @@ dependencies = [
 
 [[package]]
 name = "rustical"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "anyhow",
  "argon2",
@@ -2712,7 +2712,7 @@ dependencies = [
 
 [[package]]
 name = "rustical_caldav"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "async-trait",
  "axum",
@@ -2747,7 +2747,7 @@ dependencies = [
 
 [[package]]
 name = "rustical_carddav"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "async-trait",
  "axum",
@@ -2779,7 +2779,7 @@ dependencies = [
 
 [[package]]
 name = "rustical_dav"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "async-trait",
  "axum",
@@ -2804,7 +2804,7 @@ dependencies = [
 
 [[package]]
 name = "rustical_dav_push"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "async-trait",
  "axum",
@@ -2830,7 +2830,7 @@ dependencies = [
 
 [[package]]
 name = "rustical_frontend"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "askama",
  "askama_web",
@@ -2863,7 +2863,7 @@ dependencies = [
 
 [[package]]
 name = "rustical_ical"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "axum",
  "chrono",
@@ -2881,7 +2881,7 @@ dependencies = [
 
 [[package]]
 name = "rustical_oidc"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "async-trait",
  "axum",
@@ -2896,7 +2896,7 @@ dependencies = [
 
 [[package]]
 name = "rustical_store"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -2930,7 +2930,7 @@ dependencies = [
 
 [[package]]
 name = "rustical_store_sqlite"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "async-trait",
  "chrono",
@@ -2950,7 +2950,7 @@ dependencies = [
 
 [[package]]
 name = "rustical_xml"
-version = "0.2.2"
+version = "0.3.0"
 dependencies = [
  "quick-xml",
  "thiserror 2.0.12",
diff --git a/Cargo.toml b/Cargo.toml
index 34c436a..f60d92d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -135,7 +135,10 @@ reqwest = { version = "0.12", features = [
 openidconnect = "4.0"
 clap = { version = "4.5", features = ["derive", "env"] }
 matchit-serde = { git = "https://github.com/lennart-k/matchit-serde", rev = "f0591d13" }
-ece = { version = "2.3", default-features = false }
+ece = { version = "2.3", default-features = false, features = [
+  "backend-openssl",
+] }
+openssl = { version = "0.10", features = ["vendored"] }
 p256 = { version = "0.13", features = ["ecdh"] }
 
 [dependencies]
diff --git a/Dockerfile b/Dockerfile
index b713b32..bd152e1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@ RUN case $TARGETPLATFORM in \
   *) echo "Unsupported platform ${TARGETPLATFORM}"; exit 1;;  \
   esac
 
-RUN apk add --no-cache musl-dev llvm19 clang \
+RUN apk add --no-cache musl-dev llvm19 clang perl pkgconf make \
   && rustup target add "$(cat /tmp/rust_target)" \
   && cargo install cargo-chef --locked \
   && rm -rf "$CARGO_HOME/registry"
diff --git a/crates/dav_push/Cargo.toml b/crates/dav_push/Cargo.toml
index 30f3ec7..d9f5de8 100644
--- a/crates/dav_push/Cargo.toml
+++ b/crates/dav_push/Cargo.toml
@@ -28,3 +28,4 @@ p256.workspace = true
 rand.workspace = true
 ece.workspace = true
 axum.workspace = true
+openssl.workspace = true