diff --git a/ch6/requirements/lib-py3.10.txt b/ch6/requirements/lib-py3.10.txt
index 2b3ae06..ed11ce1 100644
--- a/ch6/requirements/lib-py3.10.txt
+++ b/ch6/requirements/lib-py3.10.txt
@@ -652,9 +652,9 @@ langchain==0.2.16 \
     # via
     #   langchain-community
     #   ragas
-langchain-community==0.2.17 \
-    --hash=sha256:b0745c1fcf1bd532ed4388f90b47139d6a6c6ba48a87aa68aa32d4d6bb97259d \
-    --hash=sha256:d07c31b641e425fb8c3e7148ad6a62e1b54a9adac6e1173021a7dd3148266063
+langchain-community==0.3.0 \
+    --hash=sha256:1ee8a469ad66977f21b9d96bdcdd8549c5281c474f0f9cc13b932efd63a78105 \
+    --hash=sha256:40084f1f785f0fb56c8698ff059bbda8bd8c683cbdffa7902a0e04e72961496c
     # via ragas
 langchain-core==0.2.41 \
     --hash=sha256:3278fda5ba9a05defae8bb19f1226032add6aab21917db7b3bc74e750e263e84 \
diff --git a/ch6/requirements/lib-py3.11.txt b/ch6/requirements/lib-py3.11.txt
index f5de1c2..8ec3b04 100644
--- a/ch6/requirements/lib-py3.11.txt
+++ b/ch6/requirements/lib-py3.11.txt
@@ -640,9 +640,9 @@ langchain==0.2.16 \
     # via
     #   langchain-community
     #   ragas
-langchain-community==0.2.17 \
-    --hash=sha256:b0745c1fcf1bd532ed4388f90b47139d6a6c6ba48a87aa68aa32d4d6bb97259d \
-    --hash=sha256:d07c31b641e425fb8c3e7148ad6a62e1b54a9adac6e1173021a7dd3148266063
+langchain-community==0.3.0 \
+    --hash=sha256:1ee8a469ad66977f21b9d96bdcdd8549c5281c474f0f9cc13b932efd63a78105 \
+    --hash=sha256:40084f1f785f0fb56c8698ff059bbda8bd8c683cbdffa7902a0e04e72961496c
     # via ragas
 langchain-core==0.2.41 \
     --hash=sha256:3278fda5ba9a05defae8bb19f1226032add6aab21917db7b3bc74e750e263e84 \
diff --git a/ch6/requirements/lib-py3.12.txt b/ch6/requirements/lib-py3.12.txt
index b491dce..b181ca9 100644
--- a/ch6/requirements/lib-py3.12.txt
+++ b/ch6/requirements/lib-py3.12.txt
@@ -640,9 +640,9 @@ langchain==0.2.16 \
     # via
     #   langchain-community
     #   ragas
-langchain-community==0.2.17 \
-    --hash=sha256:b0745c1fcf1bd532ed4388f90b47139d6a6c6ba48a87aa68aa32d4d6bb97259d \
-    --hash=sha256:d07c31b641e425fb8c3e7148ad6a62e1b54a9adac6e1173021a7dd3148266063
+langchain-community==0.3.0 \
+    --hash=sha256:1ee8a469ad66977f21b9d96bdcdd8549c5281c474f0f9cc13b932efd63a78105 \
+    --hash=sha256:40084f1f785f0fb56c8698ff059bbda8bd8c683cbdffa7902a0e04e72961496c
     # via ragas
 langchain-core==0.2.41 \
     --hash=sha256:3278fda5ba9a05defae8bb19f1226032add6aab21917db7b3bc74e750e263e84 \
diff --git a/ch6/requirements/lib-py3.9.txt b/ch6/requirements/lib-py3.9.txt
index 704029e..5b3f7a2 100644
--- a/ch6/requirements/lib-py3.9.txt
+++ b/ch6/requirements/lib-py3.9.txt
@@ -656,9 +656,9 @@ langchain==0.2.16 \
     # via
     #   langchain-community
     #   ragas
-langchain-community==0.2.17 \
-    --hash=sha256:b0745c1fcf1bd532ed4388f90b47139d6a6c6ba48a87aa68aa32d4d6bb97259d \
-    --hash=sha256:d07c31b641e425fb8c3e7148ad6a62e1b54a9adac6e1173021a7dd3148266063
+langchain-community==0.3.0 \
+    --hash=sha256:1ee8a469ad66977f21b9d96bdcdd8549c5281c474f0f9cc13b932efd63a78105 \
+    --hash=sha256:40084f1f785f0fb56c8698ff059bbda8bd8c683cbdffa7902a0e04e72961496c
     # via ragas
 langchain-core==0.2.41 \
     --hash=sha256:3278fda5ba9a05defae8bb19f1226032add6aab21917db7b3bc74e750e263e84 \