diff --git a/README.md b/README.md
index e2e99f43..ed35c128 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,10 @@
 [![Code Quality: Javascript](https://img.shields.io/lgtm/grade/javascript/g/SVG-Edit/svgedit.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/SVG-Edit/svgedit/context:javascript)
 
 [![Licenses badge](https://raw.githubusercontent.com/SVG-Edit/svgedit/master/badges/licenses-badge.svg?sanitize=true)](badges/licenses-badge.svg)
-[![Licenses dev badge](https://raw.githubusercontent.com/SVG-Edit/svgedit/master/badges/licenses-badge-dev.svg?sanitize=true)](badges/licenses-badge-dev.svg)
+(see also [licenses for dev. deps.](https://raw.githubusercontent.com/SVG-Edit/svgedit/master/badges/licenses-badge-dev.svg?sanitize=true))
+(Note: The protective license `CC-BY-SA-2.0` is due to our containing at least
+one image under this stricter license; to avoid its conditions, we'd
+appreciate a replacement image. See [#377](https://github.com/SVG-Edit/svgedit/issues/377))
 <!-- [![License](https://img.shields.io/npm/l/svgedit.svg)](LICENSE-MIT) -->
 
 [![issuehunt-to-marktext](https://issuehunt.io/static/embed/issuehunt-button-v1.svg)](https://issuehunt.io/r/SVG-Edit/svgedit)
diff --git a/badges/licenses-badge-dev.svg b/badges/licenses-badge-dev.svg
index 37d16577..410cff0b 100644
--- a/badges/licenses-badge-dev.svg
+++ b/badges/licenses-badge-dev.svg
@@ -1 +1 @@
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