diff --git a/extensions-utils/src/download_dependencies.rs b/extensions-utils/src/download_dependencies.rs
index 5e4de66..deb8ceb 100644
--- a/extensions-utils/src/download_dependencies.rs
+++ b/extensions-utils/src/download_dependencies.rs
@@ -34,5 +34,11 @@ pub fn download_ic_binary(replica_rev: &str, binary_name: &str, renamed_binary_n
 
     let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
     let out_path = Path::new(&manifest_dir).join(renamed_binary_name);
-    fs::rename(binary_name, out_path).expect("Failed to move sns");
+    fs::rename(binary_name, &out_path).expect("Failed to move extension");
+    #[cfg(unix)]
+    {
+        use std::os::unix::fs::PermissionsExt;
+        dfx_core::fs::set_permissions(&out_path, std::fs::Permissions::from_mode(0o777))
+            .expect("Failed to set permissions");
+    }
 }
diff --git a/extensions-utils/src/project/import.rs b/extensions-utils/src/project/import.rs
index 32dca31..8eea8dd 100644
--- a/extensions-utils/src/project/import.rs
+++ b/extensions-utils/src/project/import.rs
@@ -2,8 +2,6 @@ use crate::project::error::ProjectError;
 use dfx_core::config::model::canister_id_store;
 use dfx_core::config::model::canister_id_store::CanisterIds;
 use dfx_core::config::model::dfinity::Config;
-
-use hyper_rustls::ConfigBuilderExt;
 use reqwest::{Client, StatusCode};
 use serde::Deserialize;
 use serde_json::{Map, Value};
diff --git a/extensions/nns/e2e/tests/nns.bash b/extensions/nns/e2e/tests/nns.bash
index 428b4ce..b9f3dfa 100755
--- a/extensions/nns/e2e/tests/nns.bash
+++ b/extensions/nns/e2e/tests/nns.bash
@@ -22,10 +22,8 @@ teardown() {
 }
 
 @test "ic-nns-init binary exists and is executable" {
-    dfx cache install
-
     # it panics, but still shows help
-    run "$(dfx cache show)/ic-nns-init" --help
+    run "$(dfx cache show)/extensions/nns/ic-nns-init" --help
     assert_failure
     assert_output --partial "thread 'main' panicked at 'Illegal arguments:"
     assert_output --partial "ic-nns-init [OPTIONS]"
@@ -33,22 +31,18 @@ teardown() {
     assert_output --regexp '--version.*Print version information'
 
     # --version fails too
-    run "$(dfx cache show)/ic-nns-init" --version
+    run "$(dfx cache show)/extensions/nns/ic-nns-init" --version
     assert_failure
 }
 
 @test "ic-admin binary exists and is executable" {
-    dfx cache install
-
-    run "$(dfx cache show)/ic-admin" --help
+    run "$(dfx cache show)/extensions/nns/ic-admin" --help
     assert_success
     assert_output --partial 'Common command-line options for `ic-admin`'
 }
 
 @test "sns binary exists and is executable" {
-    dfx cache install
-
-    run "$(dfx cache show)/sns" --help
+    run "$(dfx cache show)/extensions/nns/sns-cli" --help
     assert_failure
     assert_output --partial "Initialize, deploy and interact with an SNS."
 }
diff --git a/extensions/sns/e2e/tests/sns.bash b/extensions/sns/e2e/tests/sns.bash
index fe10352..cd524e5 100755
--- a/extensions/sns/e2e/tests/sns.bash
+++ b/extensions/sns/e2e/tests/sns.bash
@@ -92,3 +92,8 @@ SNS_CONFIG_FILE_NAME="sns.yml"
     #dfx canister id sns_root
     #dfx canister id sns_swap
 }
+
+@test "sns-cli binary exists and is executable" {
+    run "$(dfx cache show)"/extensions/sns/sns-cli --help
+    assert_output --partial "Initialize, deploy and interact with an SNS"
+}