diff --git a/tasks/create-pyxis-image/create-pyxis-image.yaml b/tasks/create-pyxis-image/create-pyxis-image.yaml
index 3e466cbf7..07a95ad35 100644
--- a/tasks/create-pyxis-image/create-pyxis-image.yaml
+++ b/tasks/create-pyxis-image/create-pyxis-image.yaml
@@ -157,7 +157,7 @@ spec:
                 fi
 
                 # Save the OCI manifest locally, to pass to a script to create the pyxis entry
-                MANIFEST_FILE="/tmp/oras-manifest-fetch.json"
+                MANIFEST_FILE="$(workspaces.data.path)/oras-manifest-fetch.json"
                 oras manifest fetch \
                   --registry-config "$AUTH_FILE" \
                   "${ORAS_ARGS[@]}" \
diff --git a/tasks/create-pyxis-image/tests/mocks.sh b/tasks/create-pyxis-image/tests/mocks.sh
index de1d7f292..10d7b840a 100644
--- a/tasks/create-pyxis-image/tests/mocks.sh
+++ b/tasks/create-pyxis-image/tests/mocks.sh
@@ -9,7 +9,7 @@ function create_container_image() {
   # e.g. 0001, 0002, 0003...
   echo The image id is $(awk 'END{printf("%04i", NR)}' $(workspaces.data.path)/mock_create_container_image.txt)
 
-  if [[ "$*" != "--pyxis-url https://pyxis.preprod.api.redhat.com/ --certified false --tags "*" --is-latest false --verbose --oras-manifest-fetch /tmp/oras-manifest-fetch.json --name "*" --media-type my_media_type --digest "*" --architecture-digest "*" --architecture "*" --rh-push "* ]]
+  if [[ "$*" != "--pyxis-url https://pyxis.preprod.api.redhat.com/ --certified false --tags "*" --is-latest false --verbose --oras-manifest-fetch /workspace/data/oras-manifest-fetch.json --name "*" --media-type my_media_type+gzip --digest "*" --architecture-digest "*" --architecture "*" --rh-push "* ]]
   then
     echo Error: Unexpected call
     echo Mock create_container_image called with: $*
@@ -32,7 +32,7 @@ function skopeo() {
   echo $* >> $(workspaces.data.path)/mock_skopeo.txt
   if [[ "$*" == "inspect --raw docker://"* ]] || [[ "$*" == "inspect --no-tags --override-os linux --override-arch "*" docker://"* ]]
   then
-    echo '{"mediaType": "my_media_type"}'
+    echo '{"mediaType": "my_media_type+gzip"}'
   else
     echo Mock skopeo called with: $*
     if [[ "$*" != "inspect --no-tags docker://"* ]]
@@ -61,9 +61,18 @@ function oras() {
   if [[ "$*" == "manifest fetch --registry-config"*.dockerfile ]]
   then
     echo '{"layers": [{"annotations": {"org.opencontainers.image.title": "Dockerfile.custom"}}]}'
+  elif [[ "$*" == "blob fetch --registry-config"*"/tmp/oras-blob-fetch-beef.gz"* ]]
+  then
+    echo -n 'H4sIAAAAAAAAA0vKzEssqlRISSxJVEjPTy1WyEgtSgUAXVhZVxUAAAA=' | base64 -d > /tmp/oras-blob-fetch-beef.gz
+  elif [[ "$*" == "blob fetch --registry-config"*"/tmp/oras-blob-fetch-pork.gz"* ]]
+  then
+    echo -n 'H4sIAAAAAAAAA8vNL0pVSEksSQQA2pxWLAkAAAA=' | base64 -d > /tmp/oras-blob-fetch-pork.gz
+  elif [[ "$*" == "manifest fetch --registry-config"*image-with-gzipped-layers* ]]
+  then
+    echo '{"mediaType": "my_media_type", "layers": [{"mediaType": "blob+gzip", "digest": "beef"}, {"mediaType": "blob+gzip", "digest": "pork"}]}'
   elif [[ "$*" == "manifest fetch --registry-config"* ]]
   then
-    echo '{"mediaType": "my_media_type"}'
+    echo '{"mediaType": "my_media_type", "layers": [{"mediaType": "blob+other", "digest": "tofu"}]}'
   elif [[ "$*" == "pull --registry-config"*dockerfile-not-found:sha256-*.dockerfile* ]]
   then
     echo Mock oras called with: $*
diff --git a/tasks/create-pyxis-image/tests/test-create-pyxis-image-with-gzipped-layers.yaml b/tasks/create-pyxis-image/tests/test-create-pyxis-image-with-gzipped-layers.yaml
new file mode 100644
index 000000000..0f34063f9
--- /dev/null
+++ b/tasks/create-pyxis-image/tests/test-create-pyxis-image-with-gzipped-layers.yaml
@@ -0,0 +1,97 @@
+---
+apiVersion: tekton.dev/v1
+kind: Pipeline
+metadata:
+  name: test-create-pyxis-image-with-gzipped-layers
+spec:
+  description: |
+    Run the create-pyxis-image task with an image that has gzipped layers, to
+    see that we reported the uncompressed digests correctly
+  workspaces:
+    - name: tests-workspace
+  tasks:
+    - name: setup
+      workspaces:
+        - name: data
+          workspace: tests-workspace
+      taskSpec:
+        workspaces:
+          - name: data
+        steps:
+          - name: setup-values
+            image: quay.io/konflux-ci/release-service-utils:65d8db844c008e7736ec8dff307868525279484d
+            script: |
+              #!/usr/bin/env bash
+              set -eux
+
+              cat > "$(workspaces.data.path)"/mapped_snapshot.json << EOF
+              {
+                "application": "myapp",
+                "components": [
+                  {
+                    "name": "comp",
+                    "containerImage": "source@sha256:mydigest",
+                    "repository": "registry.io/image-with-gzipped-layers",
+                    "tags": [
+                      "testtag"
+                    ]
+                  }
+                ]
+              }
+              EOF
+    - name: run-task
+      taskRef:
+        name: create-pyxis-image
+      params:
+        - name: pyxisSecret
+          value: test-create-pyxis-image-cert
+        - name: server
+          value: stage
+        - name: snapshotPath
+          value: mapped_snapshot.json
+      workspaces:
+        - name: data
+          workspace: tests-workspace
+      runAfter:
+        - setup
+    - name: check-result
+      params:
+        - name: pyxisDataPath
+          value: $(tasks.run-task.results.pyxisDataPath)
+      workspaces:
+        - name: data
+          workspace: tests-workspace
+      taskSpec:
+        params:
+          - name: pyxisDataPath
+            type: string
+        workspaces:
+          - name: data
+        steps:
+          - name: check-result
+            image: quay.io/konflux-ci/release-service-utils:65d8db844c008e7736ec8dff307868525279484d
+            script: |
+              #!/usr/bin/env bash
+              set -eux
+
+              if [ "$(wc -l < "$(workspaces.data.path)"/mock_create_container_image.txt)" != 1 ]; then
+                echo Error: create_container_image was expected to be called 1 time. Actual calls:
+                cat "$(workspaces.data.path)/mock_create_container_image.txt"
+                exit 1
+              fi
+
+              if [ "$(wc -l < "$(workspaces.data.path)"/mock_oras.txt)" != 5 ]; then
+                echo Error: oras was expected to be called 4 times. Actual calls:
+                cat "$(workspaces.data.path)/mock_oras.txt"
+                exit 1
+              fi
+
+              [ "$(head -n 1 < "$(workspaces.data.path)"/mock_skopeo.txt)" \
+                = "inspect --raw docker://registry.io/image-with-gzipped-layers@sha256:mydigest" ]
+
+              # check that the size of the decompressed layers is as expected
+              jq -e '.uncompressed_layers[0].size == 21' "$(workspaces.data.path)/oras-manifest-fetch.json"
+              jq -e '.uncompressed_layers[1].size == 9' "$(workspaces.data.path)/oras-manifest-fetch.json"
+
+      runAfter:
+        - run-task