diff --git a/hack/update-deps.sh b/hack/update-deps.sh
index 68bfa5f6a3..76a8d68d7d 100755
--- a/hack/update-deps.sh
+++ b/hack/update-deps.sh
@@ -21,3 +21,39 @@ set -o pipefail
 source $(dirname "$0")/../vendor/knative.dev/hack/library.sh
 
 go_update_deps "$@"
+
+# Update semconv import versions to match the go.opentelemetry.io/otel version
+# This prevents schema conflict errors when OpenTelemetry dependencies are bumped
+log.step "Syncing semconv imports"
+OTEL_VERSION=$(go list -m go.opentelemetry.io/otel 2>/dev/null | awk '{print $NF}')
+if [ -n "$OTEL_VERSION" ]; then
+  group "Detected go.opentelemetry.io/otel ${OTEL_VERSION}"
+
+  # Check known mappings first (fast path)
+  case "$OTEL_VERSION" in
+    v1.45.*) SEMCONV_VERSION="v1.43.0" ;;
+    v1.44.*) SEMCONV_VERSION="v1.41.0" ;;
+  esac
+
+  # If no mapping found, fetch from OTEL's go.mod
+  if [ -z "$SEMCONV_VERSION" ]; then
+    group "No known mapping, fetching semconv version from OTEL go.mod"
+    SEMCONV_VERSION=$(curl -s "https://raw.githubusercontent.com/open-telemetry/opentelemetry-go/${OTEL_VERSION}/go.mod" 2>/dev/null | \
+      grep "go.opentelemetry.io/otel/semconv/v" | head -1 | grep -oE 'v[0-9]+\.[0-9]+\.[0-9]+' || echo "")
+  fi
+
+  if [ -n "$SEMCONV_VERSION" ]; then
+    group "Updating semconv imports to ${SEMCONV_VERSION}"
+    # Find Go files under observability/ that use a versioned semconv import and
+    # update them. Match only the version segment so subpackage imports
+    # (e.g. .../v1.41.0/httpconv) are updated too, preserving what follows it.
+    find observability -type f -name "*.go" -exec \
+      grep -lE "go.opentelemetry.io/otel/semconv/v[0-9]+\.[0-9]+\.[0-9]+" {} + | \
+      while IFS= read -r file; do
+        group "  ${file}"
+        sed -i -E "s|(go.opentelemetry.io/otel/semconv/)v[0-9]+\.[0-9]+\.[0-9]+|\1$SEMCONV_VERSION|g" "$file"
+      done
+  else
+    group "Could not determine semconv version, skipping"
+  fi
+fi