diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 578e0dd6..a347c80f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -83,7 +83,7 @@ jobs:
           # Pre-build piper before we start tests in order to have shared libraries in place
           make sources/go-piper && \
           GO_TAGS="tts" make -C sources/go-piper piper.o && \
-          sudo cp -rfv sources/go-piper/piper/build/pi/lib/. /usr/lib/ && \
+          sudo cp -rfv sources/go-piper/piper-phonemize/pi/lib/. /usr/lib/ && \
           # Pre-build stable diffusion before we install a newer version of abseil (not compatible with stablediffusion-ncn)
           GO_TAGS="stablediffusion tts" GRPC_BACKENDS=backend-assets/grpc/stablediffusion make build
 
diff --git a/Dockerfile b/Dockerfile
index 35aced64..1c4ec534 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -105,9 +105,9 @@ RUN if [ "${BUILD_GRPC}" = "true" ]; then \
 # Rebuild with defaults backends
 RUN make build
 
-RUN if [ ! -d "/build/sources/go-piper/piper/build/pi/lib/" ]; then \
-    mkdir -p /build/sources/go-piper/piper/build/pi/lib/ \
-    touch /build/sources/go-piper/piper/build/pi/lib/keep \
+RUN if [ ! -d "/build/sources/go-piper/piper-phonemize/pi/lib/" ]; then \
+    mkdir -p /build/sources/go-piper/piper-phonemize/pi/lib/ \
+    touch /build/sources/go-piper/piper-phonemize/pi/lib/keep \
     ; fi
 
 ###################################
@@ -151,7 +151,7 @@ RUN make prepare-sources && cd /build/grpc/cmake/build && make install && rm -rf
 COPY --from=builder /build/local-ai ./
 
 # Copy shared libraries for piper
-COPY --from=builder /build/sources/go-piper/piper/build/pi/lib/* /usr/lib/
+COPY --from=builder /build/sources/go-piper/piper-phonemize/pi/lib/* /usr/lib/
 
 # do not let stablediffusion rebuild (requires an older version of absl)
 COPY --from=builder /build/backend-assets/grpc/stablediffusion ./backend-assets/grpc/stablediffusion
diff --git a/Makefile b/Makefile
index 5dfe5ea2..c271300d 100644
--- a/Makefile
+++ b/Makefile
@@ -28,7 +28,7 @@ WHISPER_CPP_VERSION?=3c28d1a5712e4c06b0380166e6f482ca2b525970
 BERT_VERSION?=6abe312cded14042f6b7c3cd8edf082713334a4d
 
 # go-piper version
-PIPER_VERSION?=5a4c9e28c84bac09ab6baa9f88457d852cb46bb2
+PIPER_VERSION?=5386f3ed8e8ff6d9474832aa9a9a6a8d7b337d6a
 
 # stablediffusion version
 STABLEDIFFUSION_VERSION?=902db5f066fd137697e3b69d0fa10d4782bd2c2f
@@ -191,7 +191,7 @@ backend-assets/gpt4all: sources/gpt4all/gpt4all-bindings/golang/libgpt4all.a
 backend-assets/espeak-ng-data: sources/go-piper
 	mkdir -p backend-assets/espeak-ng-data
 	$(MAKE) -C sources/go-piper piper.o
-	@cp -rf sources/go-piper/piper/build/pi/share/espeak-ng-data/. backend-assets/espeak-ng-data
+	@cp -rf sources/go-piper/piper-phonemize/pi/share/espeak-ng-data/. backend-assets/espeak-ng-data
 
 sources/gpt4all/gpt4all-bindings/golang/libgpt4all.a: sources/gpt4all
 	$(MAKE) -C sources/gpt4all/gpt4all-bindings/golang/ libgpt4all.a
diff --git a/backend/python/petals/petals.yml b/backend/python/petals/petals.yml
index a68f39b4..35eea15a 100644
--- a/backend/python/petals/petals.yml
+++ b/backend/python/petals/petals.yml
@@ -15,7 +15,7 @@ dependencies:
   # - ncurses=6.4=h6a678d5_0
   # - openssl=3.0.11=h7f8727e_2
   # - pip=23.2.1=py311h06a4308_0
-  # - python=3.11.5=h955ad1f_0
+  - python=3.11.5=h955ad1f_0
   # - readline=8.2=h5eee18b_0
   # - setuptools=68.0.0=py311h06a4308_0
   # - sqlite=3.41.2=h5eee18b_0
@@ -25,5 +25,6 @@ dependencies:
   # - xz=5.4.2=h5eee18b_0
   # - zlib=1.2.13=h5eee18b_0
   - pip:
+      - torch==2.1.0
       - git+https://github.com/bigscience-workshop/petals
 prefix: /opt/conda/envs/petals