diff --git a/19.0-rc/apache/Dockerfile b/19.0-rc/apache/Dockerfile
index 24db04a0..b6cb3bb6 100644
--- a/19.0-rc/apache/Dockerfile
+++ b/19.0-rc/apache/Dockerfile
@@ -54,6 +54,7 @@ RUN set -ex; \
         pdo_pgsql \
         zip \
         gmp \
+        bcmath \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
diff --git a/19.0-rc/fpm-alpine/Dockerfile b/19.0-rc/fpm-alpine/Dockerfile
index d85293ba..f6d02616 100644
--- a/19.0-rc/fpm-alpine/Dockerfile
+++ b/19.0-rc/fpm-alpine/Dockerfile
@@ -48,6 +48,7 @@ RUN set -ex; \
         pdo_pgsql \
         zip \
         gmp \
+        bcmath \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
diff --git a/19.0-rc/fpm/Dockerfile b/19.0-rc/fpm/Dockerfile
index f5c40e62..e2a3035d 100644
--- a/19.0-rc/fpm/Dockerfile
+++ b/19.0-rc/fpm/Dockerfile
@@ -54,6 +54,7 @@ RUN set -ex; \
         pdo_pgsql \
         zip \
         gmp \
+        bcmath \
     ; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately