diff --git a/README.md b/README.md
index 38efd64..03e15e9 100644
--- a/README.md
+++ b/README.md
@@ -134,22 +134,20 @@ all available subcommands.
 - A terminal :sunglasses:
 - Internet connection
 - Linux:
-  - CA certificates:
-    - Ubuntu, Debian and derivatives: `apt install ca-certificates`
+  - OpenSSL & CA certificates:
+    - Ubuntu, Debian and derivatives: `apt install openssl ca-certificates`
   - Optional: `xclip` or `xsel` for clipboard support
     - Ubuntu, Debian and derivatives: `apt install xclip`
     - CentOS/Red Hat/openSUSE/Fedora: `yum install xclip`
     - Arch: `pacman -S xclip`
-  - Optional: OpenSSL with `crypto-openssl` feature
-    - Ubuntu, Debian and derivatives: `apt install openssl`
 - Windows specific:
   - Optional OpenSSL with `crypto-openssl` feature: [» Installer][openssl-windows-installer] (`v1.1.0j` or above)
 - macOS specific:
   - Optional OpenSSL with `crypto-openssl` feature: `brew install openssl@1.1`
 - FreeBSD specific:
+  - OpenSSL: `pkg install openssl`
   - CA certificates: `pkg install ca_root_nss`
   - Optional `xclip` & `xsel` for clipboard support: `pkg install xclip xsel-conrad`
-  - Optional OpenSSL with `crypto-openssl` feature: `pkg install openssl`
 - Android specific:
   - Termux: [» Termux][termux]
 
@@ -432,7 +430,7 @@ before proceeding:
 - Runtime [requirements](#requirements)
 - [`git`][git]
 - [`rust`][rust] `v1.39` or higher (install using [`rustup`][rustup])
-- Optional for `crypto-openssl` feature: [OpenSSL][openssl] or [LibreSSL][libressl] libraries and headers must be available
+- [OpenSSL][openssl] or [LibreSSL][libressl] libraries/headers:
   - Linux:
     - Ubuntu, Debian and derivatives: `apt install build-essential cmake pkg-config libssl-dev`
     - CentOS/Red Hat/openSUSE: `yum install gcc gcc-c++ make cmake openssl-devel`
@@ -441,10 +439,9 @@ before proceeding:
     - Fedora: `dnf install gcc gcc-c++ make cmake openssl-devel`
     - Or see instructions [here](https://github.com/sfackler/rust-openssl#linux)
   - Windows:
-    - See instructions here [here](https://github.com/sfackler/rust-openssl#windows-msvc)
+    - Optional with `crypto-openssl` feature: See instructions here [here](https://github.com/sfackler/rust-openssl#windows-msvc)
   - macOS:
-    - Using `brew`: `brew install cmake pkg-config openssl`
-    - Or see instructions [here](https://github.com/sfackler/rust-openssl#osx)
+    - Optional with `crypto-openssl` feature: `brew install cmake pkg-config openssl` or see instructions [here](https://github.com/sfackler/rust-openssl#osx)
   - FreeBSD:
     - `pkg install rust gmake pkgconf python36 libxcb xclip ca_root_nss xsel-conrad`
     - It is a better idea to use & modify the existing `ffsend` port, which manages dependencies for you.
diff --git a/pkg/alpine/APKBUILD b/pkg/alpine/APKBUILD
index dd50881..5a47e66 100644
--- a/pkg/alpine/APKBUILD
+++ b/pkg/alpine/APKBUILD
@@ -7,7 +7,7 @@ pkgdesc=" A fully featured Firefox Send client"
 url="https://gitlab.com/timvisee/ffsend"
 arch="x86_64 x86 armhf armv7 aarch64 ppc64le" # limited by cargo
 license="GPL-3.0-only"
-makedepends="cargo"
+makedepends="cargo openssl-dev"
 subpackages="
 	$pkgname-zsh-completion:zshcomp:noarch
 	$pkgname-fish-completion:fishcomp:noarch
diff --git a/pkg/aur/ffsend-git/PKGBUILD b/pkg/aur/ffsend-git/PKGBUILD
index 32a8211..fc1f142 100644
--- a/pkg/aur/ffsend-git/PKGBUILD
+++ b/pkg/aur/ffsend-git/PKGBUILD
@@ -16,7 +16,7 @@ arch=('x86_64' 'i686')
 provides=('ffsend')
 conflicts=('ffsend')
 depends=('ca-certificates')
-makedepends=('rust>=1.39' 'cargo' 'cmake')
+makedepends=('openssl>=1.0 rust>=1.39' 'cargo' 'cmake')
 optdepends=('xclip: clipboard support'
             'bash-completion: support auto completion for bash')
 
diff --git a/pkg/aur/ffsend/PKGBUILD b/pkg/aur/ffsend/PKGBUILD
index b81faac..fc3c0c1 100644
--- a/pkg/aur/ffsend/PKGBUILD
+++ b/pkg/aur/ffsend/PKGBUILD
@@ -15,7 +15,7 @@ sha256sums=('SKIP') # automatically set in CI, see: /.gitlab-ci.yml
 arch=('x86_64' 'i686')
 provides=('ffsend')
 depends=('ca-certificates')
-makedepends=('rust>=1.39' 'cargo' 'cmake')
+makedepends=('openssl>=1.0 rust>=1.39' 'cargo' 'cmake')
 optdepends=('xclip: clipboard support'
             'bash-completion: support auto completion for bash')
 
diff --git a/pkg/snap/snapcraft.yaml b/pkg/snap/snapcraft.yaml
index 58133f6..23452ad 100644
--- a/pkg/snap/snapcraft.yaml
+++ b/pkg/snap/snapcraft.yaml
@@ -32,4 +32,4 @@ parts:
     plugin: rust
     build-attributes: [no-system-libraries]
     build-packages: [make, cmake, pkg-config, libssl-dev]
-    stage-packages: [xclip]
+    stage-packages: [libssl1.0.0, xclip]