diff --git a/src/installer.ts b/src/installer.ts
index 3912579..509c381 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -12,7 +12,7 @@ export class CocoapodsInstaller {
         }
 
         // Remove pre-installed version of Cocoapods
-        exec.exec("gem", ["uninstall", "cocoapods", "--all", "--executables", "--ignore-dependencies"]);
+        await exec.exec("gem", ["uninstall", "cocoapods", "--all", "--executables", "--ignore-dependencies"]);
 
         // Install new version of Cocoapods
         const versionArguments = (versionSpec === "latest") ? [] : ["-v", versionSpec];
@@ -38,4 +38,4 @@ export class CocoapodsInstaller {
 
         return null;
     }
-}
\ No newline at end of file
+}