diff --git a/comps/asr/Dockerfile b/comps/asr/Dockerfile
index fd1db5806..cc2740b7d 100644
--- a/comps/asr/Dockerfile
+++ b/comps/asr/Dockerfile
@@ -3,7 +3,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 COPY comps /home/comps
 
diff --git a/comps/dataprep/milvus/docker/Dockerfile b/comps/dataprep/milvus/docker/Dockerfile
index b141579c4..7e2f2202b 100644
--- a/comps/dataprep/milvus/docker/Dockerfile
+++ b/comps/dataprep/milvus/docker/Dockerfile
@@ -4,7 +4,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 ARG ARCH="cpu"
 
diff --git a/comps/dataprep/pgvector/langchain/docker/Dockerfile b/comps/dataprep/pgvector/langchain/docker/Dockerfile
index 347b48684..75e70c524 100644
--- a/comps/dataprep/pgvector/langchain/docker/Dockerfile
+++ b/comps/dataprep/pgvector/langchain/docker/Dockerfile
@@ -4,7 +4,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 ARG ARCH="cpu"
 
diff --git a/comps/dataprep/pinecone/docker/Dockerfile b/comps/dataprep/pinecone/docker/Dockerfile
index 5db904dbf..d19ff6ab4 100644
--- a/comps/dataprep/pinecone/docker/Dockerfile
+++ b/comps/dataprep/pinecone/docker/Dockerfile
@@ -4,7 +4,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends --fix-missing \
     build-essential \
diff --git a/comps/dataprep/qdrant/docker/Dockerfile b/comps/dataprep/qdrant/docker/Dockerfile
index 5297d6101..bdf0315e2 100644
--- a/comps/dataprep/qdrant/docker/Dockerfile
+++ b/comps/dataprep/qdrant/docker/Dockerfile
@@ -4,7 +4,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 ARG ARCH="cpu"
 
diff --git a/comps/dataprep/redis/langchain/docker/Dockerfile b/comps/dataprep/redis/langchain/docker/Dockerfile
index 1d9f529b7..f7fcff5a7 100644
--- a/comps/dataprep/redis/langchain/docker/Dockerfile
+++ b/comps/dataprep/redis/langchain/docker/Dockerfile
@@ -4,7 +4,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 ARG ARCH="cpu"
 
diff --git a/comps/dataprep/redis/langchain_ray/docker/Dockerfile b/comps/dataprep/redis/langchain_ray/docker/Dockerfile
index 4d1c44cc2..e5c27cb34 100644
--- a/comps/dataprep/redis/langchain_ray/docker/Dockerfile
+++ b/comps/dataprep/redis/langchain_ray/docker/Dockerfile
@@ -4,7 +4,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 ARG ARCH="cpu"
 
diff --git a/comps/dataprep/redis/llama_index/docker/Dockerfile b/comps/dataprep/redis/llama_index/docker/Dockerfile
index bf67f036a..1bf0e8d4a 100644
--- a/comps/dataprep/redis/llama_index/docker/Dockerfile
+++ b/comps/dataprep/redis/llama_index/docker/Dockerfile
@@ -4,7 +4,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 ARG ARCH="cpu"
 
diff --git a/comps/guardrails/langchain/docker/Dockerfile b/comps/guardrails/langchain/docker/Dockerfile
index bf666b642..0cb6df85f 100644
--- a/comps/guardrails/langchain/docker/Dockerfile
+++ b/comps/guardrails/langchain/docker/Dockerfile
@@ -3,7 +3,7 @@
 
 FROM langchain/langchain:latest
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 ARG ARCH="cpu"
 
diff --git a/comps/guardrails/pii_detection/docker/Dockerfile b/comps/guardrails/pii_detection/docker/Dockerfile
index c9a187524..aac6d29b8 100644
--- a/comps/guardrails/pii_detection/docker/Dockerfile
+++ b/comps/guardrails/pii_detection/docker/Dockerfile
@@ -5,7 +5,7 @@ FROM python:3.11-slim
 
 ARG ARCH="cpu"  # Set this to "cpu" or "gpu"
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends --fix-missing \
     build-essential \
diff --git a/comps/llms/utils/lm-eval/Dockerfile.cpu b/comps/llms/utils/lm-eval/Dockerfile.cpu
index bf81a90c4..933a523a5 100644
--- a/comps/llms/utils/lm-eval/Dockerfile.cpu
+++ b/comps/llms/utils/lm-eval/Dockerfile.cpu
@@ -3,7 +3,7 @@ FROM ubuntu:${UBUNTU_VER} as devel
 
 ARG REPO_COMPS=https://github.com/opea-project/GenAIComps.git
 ARG BRANCH=main
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 RUN apt-get update && apt-get install -y --no-install-recommends --fix-missing \
     aspell \
diff --git a/comps/reranks/fastrag/docker/Dockerfile b/comps/reranks/fastrag/docker/Dockerfile
index 7d7eca6c4..8372e33b7 100644
--- a/comps/reranks/fastrag/docker/Dockerfile
+++ b/comps/reranks/fastrag/docker/Dockerfile
@@ -4,7 +4,7 @@
 
 FROM python:3.10-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends --fix-missing \
     libgl1-mesa-glx \
diff --git a/comps/reranks/tei/docker/Dockerfile b/comps/reranks/tei/docker/Dockerfile
index 24949c85f..851fbfd58 100644
--- a/comps/reranks/tei/docker/Dockerfile
+++ b/comps/reranks/tei/docker/Dockerfile
@@ -4,7 +4,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 ARG ARCH="cpu"
 
diff --git a/comps/retrievers/langchain/milvus/docker/Dockerfile b/comps/retrievers/langchain/milvus/docker/Dockerfile
index 69a971184..99c977e6f 100644
--- a/comps/retrievers/langchain/milvus/docker/Dockerfile
+++ b/comps/retrievers/langchain/milvus/docker/Dockerfile
@@ -4,7 +4,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 ARG ARCH="cpu"
 
diff --git a/comps/tts/Dockerfile b/comps/tts/Dockerfile
index 50dd9e15f..73272567d 100644
--- a/comps/tts/Dockerfile
+++ b/comps/tts/Dockerfile
@@ -3,7 +3,7 @@
 
 FROM python:3.11-slim
 
-ENV LANG C.UTF-8
+ENV LANG=C.UTF-8
 
 COPY comps /home/comps