diff --git a/api/handlers_repositories.go b/api/handlers_repositories.go
index c1de9f6..d48099c 100644
--- a/api/handlers_repositories.go
+++ b/api/handlers_repositories.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"net/http"
 	"strings"
+	"time"
 
 	"github.com/YaleSpinup/apierror"
 	"github.com/YaleSpinup/ecr-api/ecr"
@@ -351,12 +352,20 @@ func (s *server) ScanRepositoriesHandler(w http.ResponseWriter, r *http.Request)
 			handleError(w, err)
 			return
 		}
+
 		for _, image := range images {
-			err = service.ScanImage(r.Context(), image, repository)
+			imageScanFindings, err := service.GetImageScanFindingsByImageDigest(r.Context(), repository, *image.ImageDigest)
 			if err != nil {
 				handleError(w, err)
 				return
 			}
+			if imageScanFindings != nil && time.Now().UTC().Sub(*imageScanFindings.ImageScanCompletedAt) > 24*time.Hour {
+				err = service.ScanImage(r.Context(), image, repository)
+				if err != nil {
+					handleError(w, err)
+					return
+				}
+			}
 		}
 
 	}
diff --git a/ecr/images.go b/ecr/images.go
index df0af80..72889a1 100644
--- a/ecr/images.go
+++ b/ecr/images.go
@@ -52,6 +52,31 @@ func (e *ECR) GetImages(ctx context.Context, repoName string, imageIds ...*ecr.I
 	return out.ImageDetails, nil
 }
 
+// GetImageScanFindingsByImageDigest gets the scan findings for an image digest
+func (e *ECR) GetImageScanFindingsByImageDigest(ctx context.Context, repoName, digest string) (*ecr.ImageScanFindings, error) {
+	if repoName == "" || digest == "" {
+		return nil, apierror.New(apierror.ErrBadRequest, "invalid input", nil)
+	}
+
+	log.Infof("getting image scan findings for %s:%s", repoName, digest)
+
+	out, err := e.Service.DescribeImageScanFindingsWithContext(ctx, &ecr.DescribeImageScanFindingsInput{
+		ImageId: &ecr.ImageIdentifier{
+			ImageDigest: aws.String(digest),
+		},
+		MaxResults:     aws.Int64(1000),
+		RepositoryName: aws.String(repoName),
+	})
+
+	if err != nil {
+		return nil, ErrCode("failed to get image scan findings", err)
+	}
+
+	log.Debugf("got output from image scan findings %+v", out)
+
+	return out.ImageScanFindings, nil
+}
+
 // GetImageScanFindings gets the scan findings for an image tag
 func (e *ECR) GetImageScanFindings(ctx context.Context, repoName, tag string) (*ecr.ImageScanFindings, error) {
 	if repoName == "" || tag == "" {