diff --git a/earthly/postgresql/Earthfile b/earthly/postgresql/Earthfile
index 9e27ae444..0a7fe0321 100644
--- a/earthly/postgresql/Earthfile
+++ b/earthly/postgresql/Earthfile
@@ -16,23 +16,23 @@ postgres-base:
             colordiff \
             musl-dev \
             curl \
-            gcc
+            gcc \
+            python3
 
     # Get refinery
     COPY ../rust+rust-base/refinery /bin
 
     COPY ./entry.sh .
-    RUN chmod ugo+x ./entry.sh
-    COPY setup-db.sql .
+    COPY ./setup-db.sql .
 
 # Common PostgreSQL setup.
 # Prepare important files needed for building image
 BUILDER:
     COMMAND
 
-    COPY ./entry.sh .
+    RUN cp /root/entry.sh .
     RUN chmod ugo+x ./entry.sh
-    COPY setup-db.sql .
+    RUN cp /root/setup-db.sql .
 
 # Base checks for sql files
 # TODO: https://github.com/input-output-hk/catalyst-ci/issues/62
diff --git a/earthly/postgresql/Readme.md b/earthly/postgresql/Readme.md
index 70c04fd31..616c794a0 100644
--- a/earthly/postgresql/Readme.md
+++ b/earthly/postgresql/Readme.md
@@ -25,7 +25,7 @@ builder:
 
     WORKDIR /build
 
-    COPY --dir example/migrations example/data example/refinery.toml
+    COPY --dir ./example/migrations ./example/data ./example/refinery.toml .
     DO +BUILDER
 
 build: