diff --git a/dovecot.spec b/dovecot.spec
index 5077164..d560cdc 100644
--- a/dovecot.spec
+++ b/dovecot.spec
@@ -49,7 +49,9 @@ BuildRequires: krb5-devel
 BuildRequires: quota-devel
 BuildRequires: xz-devel
 BuildRequires: lz4-devel
+BuildRequires: libzstd-devel
 BuildRequires: libsodium-devel
+BuildRequires: libicu-devel
 BuildRequires: libexttextcat-devel
 BuildRequires: libstemmer-devel
 
@@ -150,7 +152,9 @@ autoreconf -I . -fiv #required for aarch64 support
     --with-mysql                 \
     --with-sqlite                \
     --with-zlib                  \
+    --with-zstd                  \
     --with-libcap                \
+    --with-icu                   \
     --with-lucene                \
     --with-ssl=openssl           \
     --with-ssldir=%{ssldir}      \