diff --git a/.github/workflows/pr-tests.yaml b/.github/workflows/pr-tests.yaml
index d90232da..8b0248e4 100644
--- a/.github/workflows/pr-tests.yaml
+++ b/.github/workflows/pr-tests.yaml
@@ -80,13 +80,13 @@ jobs:
         id: start-container-image
         run: |
           docker load --input /tmp/trow_image.tar.zst
-          ID=$(docker run -d --name trow -p 8000:8000 trow:onpr)
+          ID=$(docker run -d -e RUST_LOG=debug --name trow -p 8000:8000 trow:onpr)
           IP=$(docker inspect -f '{{range.NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $ID)
           echo "container-ip=$IP" >> $GITHUB_OUTPUT
       - name: Test connectivity
         run: curl "http://${{ steps.start-container-image.outputs.container-ip }}:8000"
       - name: Run OCI Distribution Spec conformance tests
-        uses: opencontainers/distribution-spec@v1.1.0-rc3
+        uses: opencontainers/distribution-spec@v1.1.0
         env:
           OCI_ROOT_URL: "http://${{ steps.start-container-image.outputs.container-ip }}:8000"
           OCI_NAMESPACE: oci-conformance/distribution-test
@@ -96,6 +96,9 @@ jobs:
           OCI_TEST_CONTENT_MANAGEMENT: 1
           OCI_HIDE_SKIPPED_WORKFLOWS: 0
           OCI_DEBUG: 0
+      - name: Print trow logs
+        if: always()
+        run: docker logs trow
 
 
   helm-chart-validation:
diff --git a/src/registry/digest.rs b/src/registry/digest.rs
index 6cb91358..53dd1b86 100644
--- a/src/registry/digest.rs
+++ b/src/registry/digest.rs
@@ -14,8 +14,7 @@ const BUFFER_SIZE: usize = 1024 * 1024;
 
 // These regex are used to do a simple validation of the tag fields
 lazy_static! {
-    static ref REGEX_ALGO: Regex = Regex::new(r"^[A-Za-z0-9_+.-]+$").unwrap();
-    static ref REGEX_DIGEST: Regex = Regex::new(r"^[A-Fa-f0-9]+$").unwrap();
+    static ref REGEX_DIGEST: Regex = Regex::new(r"^[A-Fa-f0-9]{32,}$").unwrap();
 }
 
 #[derive(Error, Debug)]
@@ -81,10 +80,9 @@ impl Digest {
             .collect::<Vec<String>>();
 
         // check that we have both parts: algo and digest
-        if algo_digest.len() < 2 {
+        if algo_digest.len() != 2 {
             return Err(DigestError::InvalidDigest(format!(
-                "Component cannot be parsed into a digest: {}",
-                &digest_str
+                "Digest cannot be split into components: {digest_str}"
             )));
         }
 
@@ -92,18 +90,8 @@ impl Digest {
         let algo = String::from(&algo_digest[0]);
         let hash = String::from(&algo_digest[1]);
 
-        if !REGEX_ALGO.is_match(&algo) {
-            return Err(DigestError::InvalidDigest(format!(
-                "Component cannot be parsed into a TAG wrong digest algorithm: {} - {}",
-                &digest_str, &algo
-            )));
-        }
-
         if !REGEX_DIGEST.is_match(&hash) {
-            return Err(DigestError::InvalidDigest(format!(
-                "Component cannot be parsed into a TAG wrong digest format: {} - {}",
-                &digest_str, &hash
-            )));
+            return Err(DigestError::InvalidDigest(format!("Invalid hash: {hash}")));
         }
 
         let algo_enum =