diff --git a/changes/new-When-installing-a-20250207-162721.md b/changes/new-When-installing-a-20250207-162721.md
new file mode 100644
index 0000000..c9c6ede
--- /dev/null
+++ b/changes/new-When-installing-a-20250207-162721.md
@@ -0,0 +1 @@
+When installing a `binary:` version, if the version isn't found in `nightlies.txt` cache, the cache is refreshed and it tries again.
diff --git a/install-nim.sh b/install-nim.sh
index 2f6f789..3482dd5 100755
--- a/install-nim.sh
+++ b/install-nim.sh
@@ -348,7 +348,7 @@ install_nightly() {
 # Install nightly prebuild binaries
 # from a version number. This relies on precompiling
 # a mapping of version number to nightly using
-# `nim c -r getnightlies.nim`
+# `bash getnightlies.sh`
 #------------------------------------------------
 install_binary() {
   version=${1}
@@ -362,8 +362,17 @@ install_binary() {
     echo "Found nightly URL for ${version}: ${URL}"
     install_nightly "$URL"
   else
-    echo "ERROR: no nightly found for ${version}"
-    exit 1
+    echo "WARNING: no nightly found for ${version} in cached nightlies.txt"
+    echo "Refreshing nightlies.txt ..."
+    "${THISDIR}./getnightlies.sh" || echo ""
+    URL="$(grep "^$version" "${THISDIR}/nightlies.txt" | cut -d' ' -f2 | tail -n 1)"
+    if [ ! -z "$URL" ] && [ ! "$URL" == "none" ]; then
+      echo "Found nightly URL for ${version}: ${URL}"
+      install_nightly "$URL"
+    else
+      echo "ERROR: no nightly found for ${version}"
+      exit 1
+    fi
   fi
 }