diff --git a/.changeset/late-shrimps-yell.md b/.changeset/late-shrimps-yell.md
new file mode 100644
index 0000000000..63178724b3
--- /dev/null
+++ b/.changeset/late-shrimps-yell.md
@@ -0,0 +1,5 @@
+---
+"supi": patch
+---
+
+Always try to resolve optional peer dependencies. Fixes a regression introduced in pnpm v5.5.8
diff --git a/packages/supi/src/install/resolvePeers.ts b/packages/supi/src/install/resolvePeers.ts
index 3234b07b5a..b4a0d0c87a 100644
--- a/packages/supi/src/install/resolvePeers.ts
+++ b/packages/supi/src/install/resolvePeers.ts
@@ -401,6 +401,7 @@ function resolvePeers (
           version,
         }
       } catch (err) {
+        missingPeers.push(peerName)
         if (
           ctx.resolvedPackage.additionalInfo.peerDependenciesMeta?.[peerName]?.optional === true
         ) {
@@ -416,7 +417,6 @@ requires a peer of ${peerName}@${peerVersionRange} but none was installed.`
           message,
           prefix: ctx.rootDir,
         })
-        missingPeers.push(peerName)
         continue
       }
     }