diff --git a/.buildkite/env/secrets.ejson b/.buildkite/env/secrets.ejson
index 2da72d06ee..f09ee2b45a 100644
--- a/.buildkite/env/secrets.ejson
+++ b/.buildkite/env/secrets.ejson
@@ -8,8 +8,5 @@
       "INFLUX_DATABASE": "EJ[1:yGpTmjdbyjW2kjgIHkFoJv7Ue7EbUvUbqHyw6anGgWg=:5KI9WBkXx3R/W4m256mU5MJOE7N8aAT9:Cb8QFELZ9I60t5zhJ9h55Kcs]",
       "INFLUX_PASSWORD": "EJ[1:yGpTmjdbyjW2kjgIHkFoJv7Ue7EbUvUbqHyw6anGgWg=:hQRMpLCrav+OYkNphkeM4hagdVoZv5Iw:AUO76rr6+gF1OLJA8ZLSG8wHKXgYCPNk6gRCV8rBhZBJ4KwDaxpvOhMl7bxxXG6jol7v4aRa/Lk=]",
       "INFLUX_USERNAME": "EJ[1:yGpTmjdbyjW2kjgIHkFoJv7Ue7EbUvUbqHyw6anGgWg=:R7BNmQjfeqoGDAFTJu9bYTGHol2NgnYN:Q2tOT/EBcFvhFk+DKLKmVU7tLCpVC3Ui]",
-      "SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_unknown_linux_gnu": "EJ[1:yGpTmjdbyjW2kjgIHkFoJv7Ue7EbUvUbqHyw6anGgWg=:Egc2dMrHDU0NcZ71LwGv/V66shUhwYUE:04VoIb8CKy7KYhQ5W4cEW9SDKZltxWBL5Hob106lMBbUOD/yUvKYcG3Ep8JfTMwO3K8zowW5HpU/IdGoilX0XWLiJJ6t+p05WWK0TA16nOEtwrEG+UK8wm3sN+xCO20i4jDhpNpgg3FYFHT5rKTHW8+zaBTNUX/SFxkN67Lm+92IM28CXYE43SU1WV6H99hGFFVpTK5JVM3JuYU1ex/dHRE+xCzTr4MYUB/F+nGoNFW8HUDV/y0e1jxT9to3x0SmnytEEuk+5RUzFuEt9cKNFeNml3fOCi4qL+sfj/Y5pjH9xDiUxsvH/8NL35jbLP244aFHgWcp]",
-      "SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_apple_darwin": "EJ[1:yGpTmjdbyjW2kjgIHkFoJv7Ue7EbUvUbqHyw6anGgWg=:NeOxSoWCvXB9AL4H6OK26l/7bmsKd/oz:Ijfoxtvk2CHlN1ZXHup3Gg/914kbbAkEGWJfvozA8UIe+aUzUObMyTrKkVOeNAH8Q8YH9tNzk7RRnrTcpnzeCCBLlWcVEeruMxHox3mPRzmSeDLxtbzCl9VePlRO3T7jg90K5hW+ZAkd5J/WJNzpAcmr93ts/of3MbvGHSujId/efCTzJEcP6JInnBb8Vrj7TlgKbzUlnqpq1+NjYPSXN3maKa9pKeo2JWxZlGBMoy6QWUUY5GbYEylw9smwh1LJcHZjlaZNMuOl4gNKtaSr38IXQkAXaRUJDPAmPras00YObKzXU8RkTrP4EoP/jx5LPR7f]",
-      "SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_pc_windows_msvc": "EJ[1:yGpTmjdbyjW2kjgIHkFoJv7Ue7EbUvUbqHyw6anGgWg=:7t+56twjW+jR7fpFNNeRFLPd7E4lbmyN:JuviDpkQrfVcNUGRGsa2e/UhvH6tTYyk1s4cHHE5xZH1NByL7Kpqx36VG/+o1AUGEeSQdsBnKgzYdMoFYbO8o50DoRPc86QIEVXCupD6J9avxLFtQgOWgJp+/mCdUVXlqXiFs/vQgS/L4psrcKdF6WHd77BeUr6ll8DjH+9m5FC9Rcai2pXno6VbPpunHQ0oUdYzhFR64+LiRacBaefQ9igZ+nSEWDLqbaZSyfm9viWkijoVFTq8gAgdXXEh7g0QdxVE5T6bPristJhT6jWBhWunPUCDNFFErWIsbRGctepl4pbCWqh2hNTw9btSgVfeY6uGCOsdy9E=]"
     }
 }
diff --git a/install/src/defaults.rs b/install/src/defaults.rs
index c6454e7eb5..f078d8e09c 100644
--- a/install/src/defaults.rs
+++ b/install/src/defaults.rs
@@ -20,12 +20,3 @@ lazy_static! {
         })
     };
 }
-
-pub fn update_manifest_pubkey(target: &str) -> Option<&str> {
-    match target {
-        "x86_64-apple-darwin" => Some("GRUP8YUGASLdu2gBwHstFgeVH28qppfuCaTzq5Yo7wRo"), // SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_apple_darwin
-        "x86_64-unknown-linux-gnu" => Some("FnKt2ES9iUJkjoprf2rL62xxBAxZLVgyA4SFexPGotFE"), // SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_unknown_linux_gnu
-        "x86_64-pc-windows-msvc" => Some("2Lrj5xDCHDmqwCgGwjVqAUUM84vLpj5dReYeoXL9vSXV"), // SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_pc_windows_msvc
-        _ => None,
-    }
-}
diff --git a/install/src/lib.rs b/install/src/lib.rs
index a536f6aeeb..7e9c0dbb6e 100644
--- a/install/src/lib.rs
+++ b/install/src/lib.rs
@@ -131,20 +131,15 @@ pub fn main() -> Result<(), String> {
                         .long("no-modify-path")
                         .help("Don't configure the PATH environment variable"),
                 )
-                .arg({
-                    let arg = Arg::with_name("update_manifest_pubkey")
+                .arg(
+                    Arg::with_name("update_manifest_pubkey")
                         .short("p")
                         .long("pubkey")
                         .value_name("PUBKEY")
                         .takes_value(true)
                         .validator(is_pubkey)
-                        .help("Public key of the update manifest");
-
-                    match defaults::update_manifest_pubkey(build_env::TARGET) {
-                        Some(default_value) => arg.default_value(default_value),
-                        None => arg,
-                    }
-                })
+                        .help("Public key of the update manifest"),
+                )
                 .arg(
                     Arg::with_name("explicit_release")
                         .value_name("release")
@@ -314,20 +309,15 @@ pub fn main_init() -> Result<(), String> {
                 .long("no-modify-path")
                 .help("Don't configure the PATH environment variable"),
         )
-        .arg({
-            let arg = Arg::with_name("update_manifest_pubkey")
+        .arg(
+            Arg::with_name("update_manifest_pubkey")
                 .short("p")
                 .long("pubkey")
                 .value_name("PUBKEY")
                 .takes_value(true)
                 .validator(is_pubkey)
-                .help("Public key of the update manifest");
-
-            match defaults::update_manifest_pubkey(build_env::TARGET) {
-                Some(default_value) => arg.default_value(default_value),
-                None => arg,
-            }
-        })
+                .help("Public key of the update manifest"),
+        )
         .arg(
             Arg::with_name("explicit_release")
                 .value_name("release")