diff --git a/.github/workflows/msrv.yml b/.github/workflows/msrv.yml
index 4d2e98cbfd7..922615f22e3 100644
--- a/.github/workflows/msrv.yml
+++ b/.github/workflows/msrv.yml
@@ -19,8 +19,9 @@ jobs:
           - ubuntu-latest
     runs-on: ${{ matrix.os }}
     env:
-      # dictated by `firefox` to support the `helix` editor, but now driven by the `time` crate. IMPORTANT: adjust etc/msrv-badge.svg as well
-      rust_version: 1.67.0
+      # dictated by `firefox` to support the `helix` editor, but now probably effectively be controlled by `jiff`, which also aligns with `regex`.
+      # IMPORTANT: adjust etc/msrv-badge.svg as well
+      rust_version: 1.70.0
     steps:
       - uses: actions/checkout@v4
       - uses: extractions/setup-just@v2
diff --git a/etc/msrv-badge.svg b/etc/msrv-badge.svg
index 3e6cb76b75c..e2938f8f94b 100644
--- a/etc/msrv-badge.svg
+++ b/etc/msrv-badge.svg
@@ -1 +1,21 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="92" height="20" role="img" aria-label="rustc: 1.67.0+"><title>rustc: 1.67.0+</title><linearGradient id="s" x2="0" y2="100%"><stop offset="0" stop-color="#bbb" stop-opacity=".1"/><stop offset="1" stop-opacity=".1"/></linearGradient><clipPath id="r"><rect width="92" height="20" rx="3" fill="#fff"/></clipPath><g clip-path="url(#r)"><rect width="37" height="20" fill="#555"/><rect x="37" width="55" height="20" fill="#007ec6"/><rect width="92" height="20" fill="url(#s)"/></g><g fill="#fff" text-anchor="middle" font-family="Verdana,Geneva,DejaVu Sans,sans-serif" text-rendering="geometricPrecision" font-size="110"><text aria-hidden="true" x="195" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="270">rustc</text><text x="195" y="140" transform="scale(.1)" fill="#fff" textLength="270">rustc</text><text aria-hidden="true" x="635" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="450">1.67.0+</text><text x="635" y="140" transform="scale(.1)" fill="#fff" textLength="450">1.67.0+</text></g></svg>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="92" height="20" role="img" aria-label="rustc: 1.70.0+">
+    <title>rustc: 1.70.0+</title>
+    <linearGradient id="s" x2="0" y2="100%">
+        <stop offset="0" stop-color="#bbb" stop-opacity=".1"/>
+        <stop offset="1" stop-opacity=".1"/>
+    </linearGradient>
+    <clipPath id="r">
+        <rect width="92" height="20" rx="3" fill="#fff"/>
+    </clipPath>
+    <g clip-path="url(#r)">
+        <rect width="37" height="20" fill="#555"/>
+        <rect x="37" width="55" height="20" fill="#007ec6"/>
+        <rect width="92" height="20" fill="url(#s)"/>
+    </g>
+    <g fill="#fff" text-anchor="middle" font-family="Verdana,Geneva,DejaVu Sans,sans-serif" text-rendering="geometricPrecision" font-size="110">
+        <text aria-hidden="true" x="195" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="270">rustc</text>
+        <text x="195" y="140" transform="scale(.1)" fill="#fff" textLength="270">rustc</text>
+        <text aria-hidden="true" x="635" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="450">1.70.0+</text>
+        <text x="635" y="140" transform="scale(.1)" fill="#fff" textLength="450">1.70.0+</text>
+    </g>
+</svg>