diff --git a/flytekit/image_spec/default_builder.py b/flytekit/image_spec/default_builder.py
index bac7495d27..e105f0d371 100644
--- a/flytekit/image_spec/default_builder.py
+++ b/flytekit/image_spec/default_builder.py
@@ -174,10 +174,11 @@
     rm -rf /var/lib/apt/lists/*
 
 # Install Nix using cache mount so it persists across builds
-RUN --mount=type=cache,target=/nix,id=nix-determinate \
+RUN --mount=type=cache,target=/nix,id=nix-determinate-v2 \
     curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | \
         sh -s -- install linux \
         --determinate \
+        --extra-conf "experimental-features = nix-command flakes" \
         --extra-conf "sandbox = true" \
         --extra-conf "max-substitution-jobs = 256" \
         --extra-conf "http-connections = 256" \
@@ -190,7 +191,7 @@
 
 # Build with cache mount - reuses the same cache across builds
 RUN --mount=type=bind,source=.,target=/build/ \
-    --mount=type=cache,target=/nix,id=nix-determinate \
+    --mount=type=cache,target=/nix,id=nix-determinate-v2 \
     --mount=type=cache,target=/root/.cache/nix,id=nix-git-cache \
     --mount=type=cache,target=/var/lib/containers/cache,id=container-cache \
     . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh && \