diff --git a/Gemfile.lock b/Gemfile.lock
index dae0431bc..5574431a2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -189,7 +189,7 @@ GEM
       graphql (>= 1.13.0)
     hashdiff (1.1.0)
     hashery (2.1.2)
-    hnswlib (0.8.1)
+    hnswlib (0.9.0)
     httparty (0.21.0)
       mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
@@ -467,7 +467,7 @@ DEPENDENCIES
   faraday
   google_search_results (~> 2.0.0)
   googleauth
-  hnswlib (~> 0.8.1)
+  hnswlib (~> 0.9.0)
   hugging-face (~> 0.3.4)
   langchainrb!
   llama_cpp (~> 0.9.4)
diff --git a/langchain.gemspec b/langchain.gemspec
index 0f4b256f2..aea4393b1 100644
--- a/langchain.gemspec
+++ b/langchain.gemspec
@@ -55,7 +55,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "faraday"
   spec.add_development_dependency "googleauth"
   spec.add_development_dependency "google_search_results", "~> 2.0.0"
-  spec.add_development_dependency "hnswlib", "~> 0.8.1"
+  spec.add_development_dependency "hnswlib", "~> 0.9.0"
   spec.add_development_dependency "hugging-face", "~> 0.3.4"
   spec.add_development_dependency "milvus", "~> 0.10.3"
   spec.add_development_dependency "llama_cpp", "~> 0.9.4"