diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a0a6eaa4..46e2b7e6a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## Nextclade 3.7.4
+
+### Nextclade Web
+
+### Upgrade Auspice to 2.55.0, add polyfills
+
+This definitively resolves crash due to missing JavaScript polyfills, which occurred in Nextclade Web 3.7.2
+
 ## Nextclade 3.7.3
 
 ### Nextclade Web
diff --git a/Cargo.lock b/Cargo.lock
index 765fdc700..afe51fa06 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1711,7 +1711,7 @@ dependencies = [
 
 [[package]]
 name = "nextclade"
-version = "3.7.3"
+version = "3.7.4"
 dependencies = [
  "assert2",
  "atty",
@@ -1774,7 +1774,7 @@ dependencies = [
 
 [[package]]
 name = "nextclade-cli"
-version = "3.7.3"
+version = "3.7.4"
 dependencies = [
  "assert2",
  "clap",
@@ -1816,7 +1816,7 @@ dependencies = [
 
 [[package]]
 name = "nextclade-web"
-version = "3.7.3"
+version = "3.7.4"
 dependencies = [
  "assert2",
  "chrono",
diff --git a/Cargo.toml b/Cargo.toml
index 297f75682..b323a231c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ exclude = [
 
 [workspace.package]
 name = "nextclade"
-version = "3.7.3"
+version = "3.7.4"
 description = "Alignment, mutation calling, phylogenetic placement, clade assignment and quality control checks for viral genetic sequences. Library module."
 repository = "https://github.com/nextstrain/nextclade"
 documentation = "https://docs.nextstrain.org/projects/nextclade/en/stable/"
diff --git a/packages/nextclade-web/package.json b/packages/nextclade-web/package.json
index a93066add..fb3575bf0 100644
--- a/packages/nextclade-web/package.json
+++ b/packages/nextclade-web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@nextstrain/nextclade-web",
-  "version": "3.7.3",
+  "version": "3.7.4",
   "description": "Clade assignment, mutation calling, and sequence quality checks",
   "homepage": "https://clades.nextstrain.org",
   "repository": {