try the version

dockerfile

@@ -1,15 +1,16 @@
+ARG NGINX_VERSION
 # Stage 1: Build the module
-FROM nginx:1.26.3 AS builder
+FROM nginx:$NGINX_VERSION AS builder
 
 # Install build tools and MaxMind library
 RUN apt-get update && \
     apt-get install -y build-essential libmaxminddb-dev libpcre3-dev zlib1g-dev libssl-dev wget git && \
     rm -rf /var/lib/apt/lists/*
 
-#https://nginx.org/download/nginx-1.26.3.tar.gz
+#https://nginx.org/download/nginx-$NGINX_VERSION.tar.gz
 # Download NGINX source matching the container version
-RUN wget http://nginx.org/download/nginx-1.26.3.tar.gz && \
-    tar zxf nginx-1.26.3.tar.gz
+RUN wget http://nginx.org/download/nginx-$NGINX_VERSION.tar.gz && \
+    tar zxf nginx-$NGINX_VERSION.tar.gz
 
 # Clone the specific GeoIP2 module project
 RUN git clone https://github.com/leev/ngx_http_geoip2_module.git
@@ -20,13 +21,13 @@ RUN cd nginx-${NGINX_VERSION} && \
     make modules
 
 # Stage 2: Final Image
-FROM nginx:1.26.3
+FROM nginx:$NGINX_VERSION
 
 # Install only the runtime library
 RUN apt-get update && apt-get install -y libmaxminddb0 && rm -rf /var/lib/apt/lists/*
 
 # Copy the compiled .so file from the builder
-COPY --from=builder /nginx-1.26.3/objs/ngx_http_geoip2_module.so /usr/lib/nginx/modules/
+COPY --from=builder /nginx-$NGINX_VERSION/objs/ngx_http_geoip2_module.so /usr/lib/nginx/modules/
 
 # Copy your GeoIP database and NGINX config
 # Ensure these files are in the same folder as this Dockerfile