diff --git a/Cargo.toml b/Cargo.toml
index 25e53fe83f46e2708d74222ad8d3185a6b55ab03..51a1757e1472d8417a49ef9a679b7c65ee95240b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ memmem = "0.1"
 memoffset = "0.6"
 # When bumping the version of Sequoia search the code for XXX to find
 # spots where we can take advantage of new features.
-sequoia-openpgp = "1.3"
+sequoia-openpgp = { version = "1.0", default-features = false }
 thiserror = "1"
 
 [dependencies.rusqlite]
@@ -38,3 +38,10 @@ features = ["bundled", "collation", "blob"]
 
 [lib]
 crate-type = ["cdylib"]
+
+[features]
+default = [
+    "sequoia-openpgp/default",
+]
+crypto-nettle = ["sequoia-openpgp/crypto-nettle"]
+crypto-cng = ["sequoia-openpgp/crypto-cng"]