diff --git a/Gemfile b/Gemfile
index 2f583f9..d996e8b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -17,7 +17,7 @@ gem "bcrypt", "~> 3.1.7"
 
 # Search & Caching
 gem "faraday", "~> 2.0" # For Weaviate HTTP client
-gem "aerospike", "~> 3.0" # Aerospike client for caching and rate limiting
+gem "aerospike", "~> 4.2" # Aerospike client for caching and rate limiting
 gem "connection_pool", "~> 2.4"
 
 # Background Jobs
diff --git a/Gemfile.lock b/Gemfile.lock
index a4354da..dcf8110 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -72,7 +72,7 @@ GEM
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
       uri (>= 0.13.1)
-    aerospike (3.0.0)
+    aerospike (4.2.0)
       bcrypt (~> 3.1)
       msgpack (~> 1.0)
     ast (2.4.3)
@@ -439,7 +439,7 @@ PLATFORMS
   x86_64-linux-musl
 
 DEPENDENCIES
-  aerospike (~> 3.0)
+  aerospike (~> 4.2)
   bcrypt (~> 3.1.7)
   bootsnap
   brakeman