diff --git a/.github/workflows/build-dlib-bin.yml b/.github/workflows/build-dlib-bin.yml
index 0087be925960..129f21f63219 100644
--- a/.github/workflows/build-dlib-bin.yml
+++ b/.github/workflows/build-dlib-bin.yml
@@ -56,11 +56,16 @@ jobs:
       DLIB_BIN_VERSION: ${{ matrix.version }}
 
     steps:
-      - name: Checkout dlib ${{ env.DLIB_BIN_VERSION }}
+      # davisking/dlib tags only the base release; a .postN dlib-bin version is
+      # the same upstream source republished under a new distribution version.
+      - name: Determine upstream git tag
+        run: echo "DLIB_TAG=v${DLIB_BIN_VERSION%.post*}" >> "$GITHUB_ENV"
+
+      - name: Checkout dlib ${{ env.DLIB_TAG }}
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
         with:
           repository: davisking/dlib
-          ref: v${{ env.DLIB_BIN_VERSION }}
+          ref: ${{ env.DLIB_TAG }}
           persist-credentials: false
 
       - name: Patch dlib configuration
diff --git a/docs/packages/dlib-bin.yaml b/docs/packages/dlib-bin.yaml
index a404cfeea63d..457d07de8099 100644
--- a/docs/packages/dlib-bin.yaml
+++ b/docs/packages/dlib-bin.yaml
@@ -11,3 +11,4 @@ versions:
     sha256: 81b4ae8ee1811508fe00f4af6497f170ea3d30f20c4aea3d06bee0568e0f8922
   - filename: dlib_bin-20.0.1-cp314-cp314-manylinux_2_39_riscv64.whl
     sha256: 3b6d96fb0d4322e7f47521bdd9c668ec406a6f20dd3bb14e2b24ad8fe3f9e875
+- version: 20.0.1.post1