diff --git a/dockerfiles/php-lol/Dockerfile.8.1 b/dockerfiles/php-lol/Dockerfile.8.1
index 8edd347..39cbaf4 100644
--- a/dockerfiles/php-lol/Dockerfile.8.1
+++ b/dockerfiles/php-lol/Dockerfile.8.1
@@ -1,7 +1,7 @@
 #
 # Foundation
 #
-FROM php:8.1.34-fpm-bookworm AS foundation
+FROM php:8.1.34-fpm-trixie@sha256:a3118db1911fdd3b3ac66605122ddc859286688ced86fc860fec6d19cc2d6c55 AS foundation
 
 ENV \
   APP_DIR=/usr/src/app \
@@ -17,15 +17,13 @@ ENV BUILD_DEPENDENCIES \
   cmake \
   curl \
   libbz2-dev \
-  libc-client-dev \
   libgeoip-dev \
   libgmp-dev \
   libicu-dev \
   libjpeg-dev \
-  libkrb5-dev \
   liblz4-dev \
   libmemcached-dev \
-  libpcre3-dev \
+  libpcre2-dev \
   libpng-dev \
   libpq-dev \
   librabbitmq-dev \
@@ -48,12 +46,12 @@ RUN set -eux \
     geoip-database \
     git \
     imagemagick \
-    libaio1 \
+    libaio1t64 \
     libfontconfig \
     libjpeg-turbo-progs \
     libmagickcore-dev \
     libmagickwand-dev \
-    libodbc1 \
+    libodbc2 \
     libpq5 \
     librabbitmq4 \
     libtool \
@@ -84,8 +82,6 @@ RUN set -eux \
   && make \
   && make install \
   && popd \
-  && PHP_OPENSSL=yes docker-php-ext-configure \
-    imap --with-kerberos --with-imap-ssl \
   && docker-php-ext-install \
     bcmath \
     bz2 \
@@ -93,7 +89,6 @@ RUN set -eux \
     ftp \
     gd \
     iconv \
-    imap \
     intl \
     opcache \
     pcntl \
diff --git a/dockerfiles/php-lol/Dockerfile.8.2 b/dockerfiles/php-lol/Dockerfile.8.2
index 96a7aff..fa2677e 100644
--- a/dockerfiles/php-lol/Dockerfile.8.2
+++ b/dockerfiles/php-lol/Dockerfile.8.2
@@ -1,7 +1,7 @@
 #
 # Foundation
 #
-FROM php:8.2.30-fpm-bookworm AS foundation
+FROM php:8.2.30-fpm-trixie@sha256:2974f4c56916f527e9426b16d0aac4ee0454a86d8b2f481663b18d5edf07187f AS foundation
 
 ENV \
   APP_DIR=/usr/src/app \
@@ -17,15 +17,13 @@ ENV BUILD_DEPENDENCIES \
   cmake \
   curl \
   libbz2-dev \
-  libc-client-dev \
   libgeoip-dev \
   libgmp-dev \
   libicu-dev \
   libjpeg-dev \
-  libkrb5-dev \
   liblz4-dev \
   libmemcached-dev \
-  libpcre3-dev \
+  libpcre2-dev \
   libpng-dev \
   libpq-dev \
   librabbitmq-dev \
@@ -48,12 +46,12 @@ RUN set -eux \
     geoip-database \
     git \
     imagemagick \
-    libaio1 \
+    libaio1t64 \
     libfontconfig \
     libjpeg-turbo-progs \
     libmagickcore-dev \
     libmagickwand-dev \
-    libodbc1 \
+    libodbc2 \
     libpq5 \
     librabbitmq4 \
     libtool \
@@ -84,8 +82,6 @@ RUN set -eux \
   && make \
   && make install \
   && popd \
-  && PHP_OPENSSL=yes docker-php-ext-configure \
-    imap --with-kerberos --with-imap-ssl \
   && docker-php-ext-install \
     bcmath \
     bz2 \
@@ -93,7 +89,6 @@ RUN set -eux \
     ftp \
     gd \
     iconv \
-    imap \
     intl \
     opcache \
     pcntl \
diff --git a/dockerfiles/php-lol/Dockerfile.8.3 b/dockerfiles/php-lol/Dockerfile.8.3
index 56b5e07..a52b5f0 100644
--- a/dockerfiles/php-lol/Dockerfile.8.3
+++ b/dockerfiles/php-lol/Dockerfile.8.3
@@ -1,7 +1,7 @@
 #
 # Foundation
 #
-FROM php:8.3.30-fpm-bookworm AS foundation
+FROM php:8.3.30-fpm-trixie@sha256:6754d4da4545f912c55671e4dd2eb79ea4d1ed677b93e1c5415fe46d1a46b23d AS foundation
 
 ENV \
   APP_DIR=/usr/src/app \
@@ -17,15 +17,13 @@ ENV BUILD_DEPENDENCIES \
   cmake \
   curl \
   libbz2-dev \
-  libc-client-dev \
   libgeoip-dev \
   libgmp-dev \
   libicu-dev \
   libjpeg-dev \
-  libkrb5-dev \
   liblz4-dev \
   libmemcached-dev \
-  libpcre3-dev \
+  libpcre2-dev \
   libpng-dev \
   libpq-dev \
   librabbitmq-dev \
@@ -48,12 +46,12 @@ RUN set -eux \
     geoip-database \
     git \
     imagemagick \
-    libaio1 \
+    libaio1t64 \
     libfontconfig \
     libjpeg-turbo-progs \
     libmagickcore-dev \
     libmagickwand-dev \
-    libodbc1 \
+    libodbc2 \
     libpq5 \
     librabbitmq4 \
     libtool \
@@ -84,8 +82,6 @@ RUN set -eux \
   && make \
   && make install \
   && popd \
-  && PHP_OPENSSL=yes docker-php-ext-configure \
-    imap --with-kerberos --with-imap-ssl \
   && docker-php-ext-install \
     bcmath \
     bz2 \
@@ -93,7 +89,6 @@ RUN set -eux \
     ftp \
     gd \
     iconv \
-    imap \
     intl \
     opcache \
     pcntl \
diff --git a/dockerfiles/php-lol/Dockerfile.8.4 b/dockerfiles/php-lol/Dockerfile.8.4
index b951728..426d081 100644
--- a/dockerfiles/php-lol/Dockerfile.8.4
+++ b/dockerfiles/php-lol/Dockerfile.8.4
@@ -1,7 +1,7 @@
 #
 # Foundation
 #
-FROM php:8.4.17-fpm-bookworm AS foundation
+FROM php:8.4.17-fpm-trixie@sha256:b3059c7682a331bc96281ffba2693fd0dcafb8684e6bde24fa77aa9c3e7a1d5d AS foundation
 
 ENV \
   APP_DIR=/usr/src/app \
@@ -17,15 +17,13 @@ ENV BUILD_DEPENDENCIES \
   cmake \
   curl \
   libbz2-dev \
-  libc-client-dev \
   libgeoip-dev \
   libgmp-dev \
   libicu-dev \
   libjpeg-dev \
-  libkrb5-dev \
   liblz4-dev \
   libmemcached-dev \
-  libpcre3-dev \
+  libpcre2-dev \
   libpng-dev \
   libpq-dev \
   librabbitmq-dev \
@@ -48,12 +46,12 @@ RUN set -eux \
     geoip-database \
     git \
     imagemagick \
-    libaio1 \
+    libaio1t64 \
     libfontconfig \
     libjpeg-turbo-progs \
     libmagickcore-dev \
     libmagickwand-dev \
-    libodbc1 \
+    libodbc2 \
     libpq5 \
     librabbitmq4 \
     libtool \
@@ -69,8 +67,6 @@ RUN set -eux \
   && pickle install amqp@2.2.0 \
   && pickle install --no-interaction apcu@5.1.28 \
   && pickle install igbinary@3.2.16 \
-  && echo "--with-imap-ssl --with-kerberos" > imap_options \
-  && PHP_OPENSSL=yes pickle install --no-interaction --with-configure-options="imap_options" imap@1.0.3 \
   && echo "--enable-memcached-igbinary --enable-memcached-msgpack" > memcached_options \
   && echo "--enable-redis-igbinary --enable-redis-msgpack" > redis_options \
   && pickle install msgpack@3.0.0 \
diff --git a/tests/php-lol.yaml b/tests/php-lol.yaml
index b4062cc..0f31300 100644
--- a/tests/php-lol.yaml
+++ b/tests/php-lol.yaml
@@ -205,12 +205,6 @@ commandTests:
     exitCode: 0
     expectedOutput: ['igbinary']
 
-  - name: 'imap extension is installed'
-    command: 'sh'
-    args: ['-c', 'php -m | grep -i imap']
-    exitCode: 0
-    expectedOutput: ['imap']
-
   - name: 'imagick extension is installed'
     command: 'sh'
     args: ['-c', 'php -m | grep -i imagick']