diff --git a/2023.12/apache/Dockerfile b/2023.12/apache/Dockerfile
index af5795f..03d50ff 100644
--- a/2023.12/apache/Dockerfile
+++ b/2023.12/apache/Dockerfile
@@ -93,6 +93,7 @@ RUN set -ex; \
         pcntl \
         ldap \
         gmp \
+        intl \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
diff --git a/2023.12/fpm-alpine/Dockerfile b/2023.12/fpm-alpine/Dockerfile
index 3c8c657..1fa0f26 100644
--- a/2023.12/fpm-alpine/Dockerfile
+++ b/2023.12/fpm-alpine/Dockerfile
@@ -79,6 +79,7 @@ RUN set -ex; \
         pcntl \
         ldap \
         gmp \
+        intl \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
diff --git a/2023.12/fpm/Dockerfile b/2023.12/fpm/Dockerfile
index 2e83090..055a799 100644
--- a/2023.12/fpm/Dockerfile
+++ b/2023.12/fpm/Dockerfile
@@ -93,6 +93,7 @@ RUN set -ex; \
         pcntl \
         ldap \
         gmp \
+        intl \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately