diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index eb85355..71c87f1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -406,7 +406,7 @@ jobs:
         shell: bash
         run: |
           core_dep_version=$(grep -m1 'capglyph-core =' capglyph-cli/Cargo.toml | sed -n 's/.*version *= *"\([^"]*\)".*/\1/p')
-          if curl --fail --silent --show-error --retry 3 \
+          if curl --fail --silent --show-error --retry 3 -A "cargo" \
             "https://crates.io/api/v1/crates/capglyph-core/$core_dep_version" >/dev/null; then
             echo "ready=true" >> "$GITHUB_OUTPUT"
           else
@@ -436,7 +436,7 @@ jobs:
           set -euo pipefail
           core_dep_version=$(grep -m1 'capglyph-core =' capglyph-cli/Cargo.toml | sed -n 's/.*version *= *"\([^"]*\)".*/\1/p')
           for attempt in {1..30}; do
-            if curl --fail --silent --show-error \
+            if curl --fail --silent --show-error -A "cargo" \
               "https://crates.io/api/v1/crates/capglyph-core/$core_dep_version" >/dev/null; then
               exit 0
             fi
@@ -454,7 +454,7 @@ jobs:
         run: |
           set -euo pipefail
           version="${GITHUB_REF_NAME#v}"
-          if curl --fail --silent --show-error --retry 3 \
+          if curl --fail --silent --show-error --retry 3 -A "cargo" \
             "https://crates.io/api/v1/crates/capglyph-server/$version" >/dev/null; then
             echo "::notice::capglyph-server $version is already present on crates.io; skipping publication."
           else
@@ -470,7 +470,7 @@ jobs:
         run: |
           set -euo pipefail
           version="${GITHUB_REF_NAME#v}"
-          if curl --fail --silent --show-error --retry 3 \
+          if curl --fail --silent --show-error --retry 3 -A "cargo" \
             "https://crates.io/api/v1/crates/capglyph/$version" >/dev/null; then
             echo "::notice::capglyph $version is already present on crates.io; skipping publication."
           else
diff --git a/Cargo.lock b/Cargo.lock
index 36aa19c..99f3eda 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -679,7 +679,7 @@ dependencies = [
 
 [[package]]
 name = "capglyph"
-version = "0.1.5"
+version = "0.1.6"
 dependencies = [
  "aead",
  "anyhow",
@@ -734,7 +734,7 @@ dependencies = [
 
 [[package]]
 name = "capglyph-server"
-version = "0.1.5"
+version = "0.1.6"
 dependencies = [
  "aead",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index b387708..2b0a324 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "capglyph"
-version = "0.1.5"
+version = "0.1.6"
 edition = "2021"
 description = "Invisible structural watermark for images — human-invisible, machine-detectable"
 license = "Apache-2.0"
@@ -84,7 +84,7 @@ time = { version = "0.3", features = ["formatting"], optional = true }
 clap = { version = "4.5", features = ["derive"] }
 glob = "0.3"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
-capglyph-server = { path = "crates/capglyph-server", version = "0.1.5" }
+capglyph-server = { path = "crates/capglyph-server", version = "0.1.6" }
 rand = "0.8"
 uuid = { version = "1.8", features = ["v4", "serde"] }
 
diff --git a/crates/capglyph-server/Cargo.toml b/crates/capglyph-server/Cargo.toml
index b246db5..d0d9ef5 100644
--- a/crates/capglyph-server/Cargo.toml
+++ b/crates/capglyph-server/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "capglyph-server"
-version = "0.1.5"
+version = "0.1.6"
 edition = "2021"
 description = "CapGlyph credential server (sigild) — DB + atomic consume + revocation/audit"
 license = "Apache-2.0"