diff --git a/Dockerfile.rocm b/Dockerfile.rocm
index bfd49f0..84b04a3 100644
--- a/Dockerfile.rocm
+++ b/Dockerfile.rocm
@@ -17,11 +17,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 
 WORKDIR /app
 
-# Install uv and expose its bundled binary so pip isolated build environments
-# can find it when building packages that use uv-build (e.g. resemble-perth).
-RUN pip3 install uv && \
-    ln -sf "$(python3 -c 'import uv; print(uv.find_uv_bin())')" /usr/local/bin/uv
-
 # Step 1: Install ROCm-compatible PyTorch stack first.
 # This must happen before anything else to prevent pip from pulling CPU wheels.
 COPY requirements-rocm-init.txt .
@@ -31,6 +26,12 @@ RUN pip3 install -r requirements-rocm-init.txt
 COPY requirements-rocm.txt .
 RUN pip3 install -r requirements-rocm.txt
 
+# Step 3: Install resemble-perth with --no-build-isolation so pip uses the
+# already-installed uv binary instead of an isolated env where it can't find it.
+RUN pip3 install uv && \
+    pip3 install --no-build-isolation \
+        "resemble-perth @ git+https://github.com/resemble-ai/Perth.git@master"
+
 # Step 3: Install chatterbox with --no-deps so pip cannot replace ROCm torch.
 RUN pip3 install --no-deps chatterbox-tts
 
diff --git a/requirements-rocm.txt b/requirements-rocm.txt
index bed48dc..f66ca9f 100644
--- a/requirements-rocm.txt
+++ b/requirements-rocm.txt
@@ -12,7 +12,7 @@ huggingface-hub
 omegaconf
 
 # Chatterbox dependencies (installed separately since chatterbox uses --no-deps)
-resemble-perth @ git+https://github.com/resemble-ai/Perth.git@master
+# Note: resemble-perth is installed in a separate Dockerfile step with --no-build-isolation
 conformer==0.3.2
 s3tokenizer
 spacy-pkuseg