diff --git a/libs/langchain/langchain/chains/query_constructor/ir.py b/libs/langchain/langchain/chains/query_constructor/ir.py
index 04eac8be913..c8d6fc976b6 100644
--- a/libs/langchain/langchain/chains/query_constructor/ir.py
+++ b/libs/langchain/langchain/chains/query_constructor/ir.py
@@ -81,6 +81,7 @@ class Comparator(str, Enum):
     """Enumerator of the comparison operators."""
 
     EQ = "eq"
+    NE = "ne"
     GT = "gt"
     GTE = "gte"
     LT = "lt"
diff --git a/libs/langchain/langchain/retrievers/self_query/chroma.py b/libs/langchain/langchain/retrievers/self_query/chroma.py
index 9f9900358a1..8c9a79b12d3 100644
--- a/libs/langchain/langchain/retrievers/self_query/chroma.py
+++ b/libs/langchain/langchain/retrievers/self_query/chroma.py
@@ -17,6 +17,7 @@ class ChromaTranslator(Visitor):
     """Subset of allowed logical operators."""
     allowed_comparators = [
         Comparator.EQ,
+        Comparator.NE,
         Comparator.GT,
         Comparator.GTE,
         Comparator.LT,
diff --git a/libs/langchain/langchain/retrievers/self_query/deeplake.py b/libs/langchain/langchain/retrievers/self_query/deeplake.py
index 1e65eb39a16..030933b32e8 100644
--- a/libs/langchain/langchain/retrievers/self_query/deeplake.py
+++ b/libs/langchain/langchain/retrievers/self_query/deeplake.py
@@ -22,6 +22,7 @@ COMPARATOR_TO_TQL = {
 OPERATOR_TO_TQL = {
     Operator.AND: "and",
     Operator.OR: "or",
+    Operator.NOT: "NOT",
 }
 
 
@@ -37,7 +38,7 @@ def can_cast_to_float(string: str) -> bool:
 class DeepLakeTranslator(Visitor):
     """Translate `DeepLake` internal query language elements to valid filters."""
 
-    allowed_operators = [Operator.AND, Operator.OR]
+    allowed_operators = [Operator.AND, Operator.OR, Operator.NOT]
     """Subset of allowed logical operators."""
     allowed_comparators = [
         Comparator.EQ,
diff --git a/libs/langchain/langchain/retrievers/self_query/pinecone.py b/libs/langchain/langchain/retrievers/self_query/pinecone.py
index 003514953cf..a39fc310bf4 100644
--- a/libs/langchain/langchain/retrievers/self_query/pinecone.py
+++ b/libs/langchain/langchain/retrievers/self_query/pinecone.py
@@ -15,6 +15,7 @@ class PineconeTranslator(Visitor):
 
     allowed_comparators = (
         Comparator.EQ,
+        Comparator.NE,
         Comparator.LT,
         Comparator.LTE,
         Comparator.GT,