diff --git a/php-80/Dockerfile b/php-80/Dockerfile
index de4501fc..5230fac4 100644
--- a/php-80/Dockerfile
+++ b/php-80/Dockerfile
@@ -206,7 +206,7 @@ RUN cmake  --build . --target install
 #   - libxml2
 # Needed by:
 #   - curl
-ENV VERSION_NGHTTP2=1.65.0
+ENV VERSION_NGHTTP2=1.66.0
 ENV NGHTTP2_BUILD_DIR=${BUILD_DIR}/nghttp2
 RUN set -xe; \
     mkdir -p ${NGHTTP2_BUILD_DIR}; \
diff --git a/php-81/Dockerfile b/php-81/Dockerfile
index 3c5ca0ca..b71b8f35 100644
--- a/php-81/Dockerfile
+++ b/php-81/Dockerfile
@@ -207,7 +207,7 @@ RUN cmake  --build . --target install
 #   - libxml2
 # Needed by:
 #   - curl
-ENV VERSION_NGHTTP2=1.65.0
+ENV VERSION_NGHTTP2=1.66.0
 ENV NGHTTP2_BUILD_DIR=${BUILD_DIR}/nghttp2
 RUN set -xe; \
     mkdir -p ${NGHTTP2_BUILD_DIR}; \
diff --git a/php-82/Dockerfile b/php-82/Dockerfile
index deb80b6f..72a925bd 100644
--- a/php-82/Dockerfile
+++ b/php-82/Dockerfile
@@ -207,7 +207,7 @@ RUN cmake  --build . --target install
 #   - libxml2
 # Needed by:
 #   - curl
-ENV VERSION_NGHTTP2=1.65.0
+ENV VERSION_NGHTTP2=1.66.0
 ENV NGHTTP2_BUILD_DIR=${BUILD_DIR}/nghttp2
 RUN set -xe; \
     mkdir -p ${NGHTTP2_BUILD_DIR}; \
diff --git a/php-83/Dockerfile b/php-83/Dockerfile
index 8bc2ee5a..32fbe1bf 100644
--- a/php-83/Dockerfile
+++ b/php-83/Dockerfile
@@ -207,7 +207,7 @@ RUN cmake  --build . --target install
 #   - libxml2
 # Needed by:
 #   - curl
-ENV VERSION_NGHTTP2=1.65.0
+ENV VERSION_NGHTTP2=1.66.0
 ENV NGHTTP2_BUILD_DIR=${BUILD_DIR}/nghttp2
 RUN set -xe; \
     mkdir -p ${NGHTTP2_BUILD_DIR}; \
diff --git a/php-84/Dockerfile b/php-84/Dockerfile
index 031dec20..5ab853c3 100644
--- a/php-84/Dockerfile
+++ b/php-84/Dockerfile
@@ -207,7 +207,7 @@ RUN cmake  --build . --target install
 #   - libxml2
 # Needed by:
 #   - curl
-ENV VERSION_NGHTTP2=1.65.0
+ENV VERSION_NGHTTP2=1.66.0
 ENV NGHTTP2_BUILD_DIR=${BUILD_DIR}/nghttp2
 RUN set -xe; \
     mkdir -p ${NGHTTP2_BUILD_DIR}; \